diff --git a/build/android/AndroidManifest.xml.template b/build/android/AndroidManifest.xml.template
index 460844798..4b767b0d3 100644
--- a/build/android/AndroidManifest.xml.template
+++ b/build/android/AndroidManifest.xml.template
@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="mobi.MultiCraft"
+    package="net.MultiCraft.Official"
 	android:installLocation="auto"
     android:versionCode="###ANDROID_VERSION###"
     android:versionName="###BASE_VERSION###" >
 
     <uses-sdk
         android:minSdkVersion="16"
-        android:targetSdkVersion="22" />
+        android:targetSdkVersion="23" />
 
     <supports-screens android:smallScreens="false" />
 
@@ -35,7 +35,8 @@
             android:name="mobi.MultiCraft.MCNativeActivity"
             android:configChanges="orientation|keyboard|keyboardHidden|navigation|screenSize"
             android:launchMode="singleTask"
-            android:screenOrientation="sensorLandscape" >
+            android:screenOrientation="sensorLandscape"
+            android:theme="@style/Theme.Transparent" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
             </intent-filter>
diff --git a/build/android/res/drawable-xhdpi/header.png b/build/android/res/drawable-xhdpi/header.png
deleted file mode 100644
index d4ff4addc..000000000
Binary files a/build/android/res/drawable-xhdpi/header.png and /dev/null differ
diff --git a/build/android/res/drawable-xhdpi/ic_launcher.png b/build/android/res/drawable-xhdpi/ic_launcher.png
deleted file mode 100644
index 0d435344a..000000000
Binary files a/build/android/res/drawable-xhdpi/ic_launcher.png and /dev/null differ
diff --git a/build/android/res/drawable-xhdpi/update.png b/build/android/res/drawable-xhdpi/update.png
deleted file mode 100644
index 63fe67f22..000000000
Binary files a/build/android/res/drawable-xhdpi/update.png and /dev/null differ
diff --git a/build/android/res/drawable-xhdpi/wallpaper.jpg b/build/android/res/drawable-xhdpi/wallpaper.jpg
deleted file mode 100644
index dc7032780..000000000
Binary files a/build/android/res/drawable-xhdpi/wallpaper.jpg and /dev/null differ
diff --git a/build/android/res/drawable/custom_progress_bar.xml b/build/android/res/drawable/custom_progress_bar.xml
deleted file mode 100644
index dc1db2e5d..000000000
--- a/build/android/res/drawable/custom_progress_bar.xml
+++ /dev/null
@@ -1,28 +0,0 @@
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-
-    <!-- Define the background properties like color etc -->
-    <item android:id="@android:id/background">
-        <shape>
-            <gradient
-                android:startColor="#000001"
-                android:centerColor="#0b131e"
-                android:centerY="1.0"
-                android:endColor="#0d1522"
-                android:angle="270" />
-        </shape>
-    </item>
-
-    <!-- Define the progress properties like start color, end color etc -->
-    <item android:id="@android:id/progress">
-        <clip>
-            <shape>
-                <gradient
-                    android:startColor="#007A00"
-                    android:centerColor="#007A00"
-                    android:centerY="1.0"
-                    android:endColor="#06101d"
-                    android:angle="270" />
-            </shape>
-        </clip>
-    </item>
-</layer-list> 
\ No newline at end of file
diff --git a/build/android/res/layout/activity_main.xml b/build/android/res/layout/activity_main.xml
deleted file mode 100644
index f36209c14..000000000
--- a/build/android/res/layout/activity_main.xml
+++ /dev/null
@@ -1,70 +0,0 @@
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:background="@drawable/wallpaper" >
-
-    <ImageView
-        android:id="@+id/imageView1"
-        android:layout_width="wrap_content"
-        android:layout_height="120dp"
-        android:layout_alignParentEnd="true"
-        android:layout_alignParentLeft="true"
-        android:layout_alignParentRight="true"
-        android:layout_alignParentStart="true"
-        android:layout_alignParentTop="true"
-        android:src="@drawable/header" />
-
-    <TextView
-        android:id="@+id/progress_title"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_above="@+id/PB1"
-        android:layout_centerHorizontal="true"
-        android:paddingBottom="16dp"
-        android:text="@string/loading"
-        android:textColor="#FFFFFF"
-        android:textSize="24sp" />
-
-    <ProgressBar
-        android:id="@+id/PB1"
-        style="?android:attr/progressBarStyleHorizontal"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_centerHorizontal="true"
-        android:layout_centerVertical="true"
-        android:layout_marginLeft="16dp"
-        android:layout_marginRight="16dp"
-        android:max="100"
-        android:progressDrawable="@drawable/custom_progress_bar"
-        android:visibility="gone" />
-
-    <TextView
-        android:id="@+id/progress_textView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_below="@id/PB1"
-        android:layout_centerHorizontal="true"
-        android:paddingTop="16dp"
-        android:textColor="#FFFFFF"
-        android:textSize="24sp"
-        android:visibility="gone" />
-
-    <TextView
-        android:id="@+id/warning"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true"
-        android:layout_alignParentEnd="true"
-        android:layout_alignParentLeft="true"
-        android:layout_alignParentRight="true"
-        android:layout_alignParentStart="true"
-        android:layout_marginBottom="10dp"
-        android:alpha="0.9"
-        android:background="#ceff99"
-        android:gravity="center"
-        android:text="@string/warning"
-        android:textColor="#FF0000"
-        android:textSize="20sp"
-        android:visibility="gone" />
-
-</RelativeLayout>
\ No newline at end of file
diff --git a/build/android/res/layout/dialog_template.xml b/build/android/res/layout/dialog_template.xml
deleted file mode 100644
index a89473852..000000000
--- a/build/android/res/layout/dialog_template.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:orientation="vertical" >
-
-    <TextView
-        android:id="@+id/message"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:gravity="center"
-        android:textColor="@android:color/white" />
-
-    <LinearLayout
-        style="?android:attr/buttonBarStyle"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="horizontal" >
-
-        <Button
-            android:id="@+id/negative"
-            style="?android:attr/buttonBarButtonStyle"
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:textColor="@android:color/white" />
-
-        <Button
-            android:id="@+id/positive"
-            style="?android:attr/buttonBarButtonStyle"
-            android:layout_width="0dp"
-            android:layout_height="wrap_content"
-            android:layout_weight="1"
-            android:textColor="@android:color/white" />
-    </LinearLayout>
-
-</LinearLayout>
\ No newline at end of file
diff --git a/build/android/res/layout/rate_layout.xml b/build/android/res/layout/rate_layout.xml
deleted file mode 100644
index b5c8b0814..000000000
--- a/build/android/res/layout/rate_layout.xml
+++ /dev/null
@@ -1,51 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical" >
-
-    <TextView
-        android:id="@+id/rta_message"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        android:text="@string/rta_dialog_title" />
-
-    <RatingBar
-        android:id="@+id/ratingBar"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        android:layout_marginTop="16dp"
-        android:numStars="5"
-        android:stepSize="1.0" />
-
-    <EditText
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:clickable="false"
-        android:cursorVisible="false"
-        android:focusable="false"
-        android:focusableInTouchMode="false"
-        android:hint="@string/rate_title" />
-
-    <EditText
-        android:layout_width="match_parent"
-        android:layout_height="64dp"
-        android:clickable="false"
-        android:cursorVisible="false"
-        android:focusable="false"
-        android:focusableInTouchMode="false"
-        android:hint="@string/rate_description" />
-
-    <Button
-        android:id="@+id/rate_submit"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        android:background="@android:color/transparent"
-        android:enabled="false"
-        android:text="@string/rate_submit"
-        android:textColor="#00ced1" />
-
-</LinearLayout>
\ No newline at end of file
diff --git a/build/android/res/values-ru/strings.xml b/build/android/res/values-ru/strings.xml
deleted file mode 100644
index ef83b6d9d..000000000
--- a/build/android/res/values-ru/strings.xml
+++ /dev/null
@@ -1,43 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-    <!-- подготовка к запуску -->
-    <string name="loading">Загрузка&#8230;</string>
-    <string name="warning">Игра запустится через несколько секунд&#8230;</string>
-    <string name="rm_old">Подготовка к обновлению&#8230;</string>
-    <string name="copy">Копирование&#8230;</string>
-    <string name="notification_title">Загрузка MultiCraft</string>
-    <string name="notification_description">Осталось меньше минуты&#8230;</string>
-
-    <!-- диалог оценки -->
-    <string name="rta_dialog_title">Оцените MultiCraft!</string>
-    <string name="rate_title">Название</string>
-    <string name="rate_submit">Оценить</string>
-    <string name="rate_description">Описание</string>
-    <string name="sad">Очень жаль&#8230;</string>
-
-    <!-- диалог для слабых девайсов -->
-    <string name="memory_title">Внимание!</string>
-    <string name="memory_lags">Возможны лаги при игре. Пожалуйста, не оценивайте приложение плохо,\nтак как у вас слабый аппарат.</string>
-    <string name="memory_continue">Понял</string>
-    <string name="memory_close">Закрыть</string>
-    <string name="memory_warning">У Вашего устройства недостаточно оперативной памяти для игры без лагов. Требуется более мощное устройство!</string>
-
-    <!-- диалог обновления -->
-    <string name="update_yes">Обновиться!</string>
-    <string name="update_no">Напомнить позже&#8230;</string>
-    <string name="update_ignore">Игнорировать</string>
-
-    <!-- инструкция -->
-    <string name="dialog_instruction">Привет! После загрузки игры нажмите Play.\nЧтобы поставить блок, нажмите на экран.\nЧтобы разрушить блок, удерживайте палец на экране.</string>
-    <string name="ok">Закрыть</string>
-    <string name="forget">Не напоминать</string>
-
-    <!-- недостаточно места -->
-    <string name="not_enough_space">Недостаточно места для распаковки.\nОсвободите пространство на SD карте</string>
-    <string name="space_ok">OK</string>
-
-    <!-- диалог CPU -->
-    <string name="cpu_warning">Игра несовместима с вашим типом процессора</string>
-
-</resources>
\ No newline at end of file
diff --git a/build/android/res/values/color.xml b/build/android/res/values/color.xml
deleted file mode 100644
index 41033dcd6..000000000
--- a/build/android/res/values/color.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="semi_transparent">#80000000</color>
-</resources>
\ No newline at end of file
diff --git a/build/android/res/values/dimens.xml b/build/android/res/values/dimens.xml
deleted file mode 100644
index 47c822467..000000000
--- a/build/android/res/values/dimens.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<resources>
-    <!-- Default screen margins, per the Android Design guidelines. -->
-    <dimen name="activity_horizontal_margin">16dp</dimen>
-    <dimen name="activity_vertical_margin">16dp</dimen>
-</resources>
diff --git a/build/android/res/values/strings.xml b/build/android/res/values/strings.xml
deleted file mode 100644
index 30288ece1..000000000
--- a/build/android/res/values/strings.xml
+++ /dev/null
@@ -1,45 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-    <string name="app_name" translatable="false">MultiCraft</string>
-    <string name="ver" translatable="false">1.0.1</string>
-
-    <!-- rate dialog -->
-    <string name="rta_dialog_title">Please, rate MultiCraft!</string>
-    <string name="rate_title">Title</string>
-    <string name="rate_submit">Submit</string>
-    <string name="rate_description">Description</string>
-    <string name="sad">Too bad&#8230;</string>
-
-    <!-- preparation for start -->
-    <string name="loading">Loading&#8230;</string>
-    <string name="warning">Game will start in few second&#8230;</string>
-    <string name="rm_old">Preparing to update&#8230;</string>
-    <string name="copy">Copying&#8230;</string>
-    <string name="notification_title">Downloading MultiCraft</string>
-    <string name="notification_description">Less than 1 minute&#8230;</string>
-
-    <!-- weak phone dialog -->
-    <string name="memory_warning">Your device\'s memory is too low for seamless playing</string>
-    <string name="memory_continue">Got it</string>
-    <string name="memory_close">Close</string>
-    <string name="memory_lags">Lags are possible. Please don\'t rate this game badly.</string>
-
-    <!-- update dialog -->
-    <string name="update_yes">Update now!</string>
-    <string name="update_no">Remind me later&#8230;</string>
-    <string name="update_ignore">Ignore</string>
-
-    <!-- instruction dialog -->
-    <string name="dialog_instruction">Hello! After game loading select the world and press Play. \nTo put a block tap on screen.\nTo destroy a block long tap on screen.</string>
-    <string name="ok">Close</string>
-    <string name="forget">Don\'t remind</string>
-
-    <!-- free space dialog -->
-    <string name="not_enough_space">Not enough space for unzipping.\nPlease free some space on the SD card</string>
-    <string name="space_ok">OK</string>
-
-    <!-- CPU dialog -->
-    <string name="cpu_warning">The game is not compatible with your CPU arch</string>
-
-</resources>
\ No newline at end of file
diff --git a/build/android/res/values/styles.xml b/build/android/res/values/styles.xml
deleted file mode 100644
index 2f6806f7c..000000000
--- a/build/android/res/values/styles.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-    <style name="Theme.Transparent" parent="android:Theme.Holo.Light.NoActionBar.Fullscreen">
-        <item name="android:windowNoTitle">true</item>
-        <item name="android:background">@android:color/transparent</item>
-        <item name="android:windowBackground">@android:color/transparent</item>
-        <item name="android:colorBackgroundCacheHint">@null</item>
-        <item name="android:windowIsTranslucent">true</item>
-        <item name="android:windowAnimationStyle">@android:style/Animation</item>
-    </style>
-
-    <style name="MCTheme" parent="android:Theme.Holo.Light.NoActionBar.Fullscreen" />
-
-</resources>
\ No newline at end of file
diff --git a/build/android/src/com/winsontan520/wversionmanager/library/CustomTagHandler.java b/build/android/src/com/winsontan520/wversionmanager/library/CustomTagHandler.java
deleted file mode 100644
index 6abf0b8e4..000000000
--- a/build/android/src/com/winsontan520/wversionmanager/library/CustomTagHandler.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.winsontan520.wversionmanager.library;
-
-import org.xml.sax.XMLReader;
-
-import android.text.Editable;
-import android.text.Html.TagHandler;
-
-public class CustomTagHandler implements TagHandler{
-
-	@Override
-	public void handleTag(boolean opening, String tag, Editable output,
-			XMLReader xmlReader) {
-		// you may add more tag handler which are not supported by android here
-		if("li".equals(tag)){
-			if(opening){
-				output.append(" \u2022 ");
-			}else{
-				output.append("\n");
-			}
-		}
-	}
-}
\ No newline at end of file
diff --git a/build/android/src/com/winsontan520/wversionmanager/library/IWVersionManager.java b/build/android/src/com/winsontan520/wversionmanager/library/IWVersionManager.java
deleted file mode 100644
index b5bbcefdc..000000000
--- a/build/android/src/com/winsontan520/wversionmanager/library/IWVersionManager.java
+++ /dev/null
@@ -1,123 +0,0 @@
-package com.winsontan520.wversionmanager.library;
-
-import android.graphics.drawable.Drawable;
-
-public interface IWVersionManager {
-
-	/**
-	 * @return Label of update now button
-	 */
-	public String getUpdateNowLabel();
-
-
-	/**
-	 * @param updateNowLabel Set the label for update now button
-	 */
-	public void setUpdateNowLabel(String updateNowLabel);
-
-	/**
-	 * @return label of remind me later button
-	 */
-	public String getRemindMeLaterLabel();
-
-	/**
-	 * @param remindMeLaterLabel Set label of remind me later button
-	 */
-	public void setRemindMeLaterLabel(String remindMeLaterLabel);
-
-	/**
-	 * @return label of ignore this version button
-	 */
-	public String getIgnoreThisVersionLabel();
-
-	/**
-	 * @param ignoreThisVersionLabel Set label of ignore this version button
-	 */
-	public void setIgnoreThisVersionLabel(String ignoreThisVersionLabel);
-
-	/**
-	 * @param icon Set drawable of icon in dialog
-	 */
-	public void setIcon(Drawable icon);
-
-	/**
-	 * @param title Set title of dialog
-	 */
-	public void setTitle(String title);
-
-	/**
-	 * @param message Set message of dialog
-	 */
-	public void setMessage(String message);
-
-	/**
-	 * @return message of dialog
-	 */
-	public String getMessage();
-
-	/**
-	 * @return title of dialog
-	 */
-	public String getTitle();
-
-	/**
-	 * @return drawable of icon
-	 */
-	public Drawable getIcon();
-
-	/**
-	 * @return url to execute when update now button clicked. Default value is the link in google play based on app package name.
-	 */
-	public String getUpdateUrl();
-
-	/**
-	 * @param updateUrl Set url to execute when update now button clicked
-	 */
-	public void setUpdateUrl(String updateUrl);
-
-	/**
-	 * @return url which should return update content in json format
-	 */
-	public String getVersionContentUrl();
-
-	/**
-	 * @param versionContentUrl Set the update content url
-	 */
-	public void setVersionContentUrl(String versionContentUrl);
-
-	/**
-	 * @param minutes Set reminder time in minutes when remind me later button clicked
-	 */
-	public void setReminderTimer(int minutes);
-
-	/**
-	 * @return reminder timer in minutes
-	 */
-	public int getReminderTimer();
-	
-	/**
-	 * @return current version code
-	 */
-	public int getCurrentVersionCode();
-
-	/**
-	 * @return version code which will be ignored
-	 */
-	public int getIgnoreVersionCode();
-
-	/**
-	 * @return CustomTagHandler object
-	 */
-	public CustomTagHandler getCustomTagHandler();
-
-	/**
-	 * @param customTagHandler Set your own custom tag handler
-	 */
-	public void setCustomTagHandler(CustomTagHandler customTagHandler);
-	
-	/**
-	 * @param OnReceiveListener Set your own callback listener when receiving response from server
-	 */
-	public void setOnReceiveListener(OnReceiveListener listener);
-
-}
\ No newline at end of file
diff --git a/build/android/src/com/winsontan520/wversionmanager/library/OnReceiveListener.java b/build/android/src/com/winsontan520/wversionmanager/library/OnReceiveListener.java
deleted file mode 100644
index 89d81a886..000000000
--- a/build/android/src/com/winsontan520/wversionmanager/library/OnReceiveListener.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package com.winsontan520.wversionmanager.library;
-
-public interface OnReceiveListener {
-
-	/**
-	 * @param status response code from HTTP request
-	 * @param result response data from HTTP request
-	 * @return return true to show default library dialog
-	 */
-	boolean onReceive(int status, String result);
-}
diff --git a/build/android/src/com/winsontan520/wversionmanager/library/WVersionManager.java b/build/android/src/com/winsontan520/wversionmanager/library/WVersionManager.java
deleted file mode 100644
index 8edfdb812..000000000
--- a/build/android/src/com/winsontan520/wversionmanager/library/WVersionManager.java
+++ /dev/null
@@ -1,594 +0,0 @@
-package com.winsontan520.wversionmanager.library;
-
-import static mobi.MultiCraft.PreferencesHelper.TAG_VERSION_SHOWED;
-import static mobi.MultiCraft.PreferencesHelper.saveSettings;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.util.Calendar;
-
-import org.apache.http.HttpResponse;
-import org.apache.http.HttpStatus;
-import org.apache.http.client.methods.HttpGet;
-import org.apache.http.impl.client.DefaultHttpClient;
-import org.json.JSONException;
-import org.json.JSONObject;
-import org.json.JSONTokener;
-
-import android.app.Activity;
-import android.app.AlertDialog;
-import android.content.Context;
-import android.content.DialogInterface;
-import android.content.Intent;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager.NameNotFoundException;
-import android.graphics.drawable.Drawable;
-import android.net.Uri;
-import android.os.AsyncTask;
-import android.preference.PreferenceManager;
-import android.text.Html;
-import android.util.Log;
-import mobi.MultiCraft.BuildConfig;
-import mobi.MultiCraft.IDialogHelperCallback;
-
-@SuppressWarnings("deprecation")
-public class WVersionManager implements IWVersionManager {
-	private static final String TAG = "WVersionManager";
-
-	private static final int MODE_CHECK_VERSION = 100;
-	private static final int MODE_ASK_FOR_RATE = 200;
-
-	private CustomTagHandler customTagHandler;
-	private IDialogHelperCallback callerActivity;
-	private String PREF_IGNORE_VERSION_CODE = "w.ignore.version.code";
-	private String PREF_REMINDER_TIME = "w.reminder.time";
-
-	private Activity activity;
-	private Drawable icon;
-	private String title;
-	private String message;
-	private String updateNowLabel;
-	private String remindMeLaterLabel;
-	private String ignoreThisVersionLabel;
-	private String updateUrl;
-	private String versionContentUrl;
-	private int reminderTimer;
-	private int mVersionCode;
-	private AlertDialogButtonListener listener;
-	private boolean mDialogCancelable = true;
-	private String mAskForRatePositiveLabel;
-	private String mAskForRateNegativeLabel;
-	private int mMode = 100; // default mode
-	private OnReceiveListener mOnReceiveListener;
-	private String mResult;
-
-	public WVersionManager(Activity act) {
-		this.activity = act;
-		this.customTagHandler = new CustomTagHandler();
-		callerActivity = (IDialogHelperCallback) act;
-	}
-
-	private Drawable getDefaultAppIcon() {
-		Drawable d = activity.getApplicationInfo().loadIcon(activity.getPackageManager());
-		return d;
-	}
-
-	public void checkVersion() {
-		mMode = MODE_CHECK_VERSION;
-		String versionContentUrl = getVersionContentUrl();
-		if (versionContentUrl == null) {
-			Log.e(TAG, "Please set versionContentUrl first");
-			return;
-		}
-
-		Calendar c = Calendar.getInstance();
-		long currentTimeStamp = c.getTimeInMillis();
-		long reminderTimeStamp = getReminderTime();
-		if (BuildConfig.DEBUG) {
-			Log.v(TAG, "currentTimeStamp=" + currentTimeStamp);
-			Log.v(TAG, "reminderTimeStamp=" + reminderTimeStamp);
-		}
-
-		if (currentTimeStamp > reminderTimeStamp) {
-			// fire request to get update version content
-			if (BuildConfig.DEBUG) {
-				Log.v(TAG, "getting update content...");
-			}
-			VersionContentRequest request = new VersionContentRequest(activity);
-			request.execute(getVersionContentUrl());
-		} else
-			saveSettings(activity, TAG_VERSION_SHOWED, false);
-	}
-
-	public AlertDialog showDialog(int bitMask) {
-		AlertDialog.Builder builder = new AlertDialog.Builder(activity);
-
-		builder.setIcon(getIcon());
-		builder.setTitle(getTitle());
-		builder.setMessage(Html.fromHtml(getMessage(), null, getCustomTagHandler()));
-
-		switch (mMode) {
-		case MODE_CHECK_VERSION:
-			listener = new AlertDialogButtonListener(bitMask);
-			builder.setPositiveButton(getUpdateNowLabel(), listener);
-			builder.setNeutralButton(getRemindMeLaterLabel(), listener);
-			builder.setNegativeButton(getIgnoreThisVersionLabel(), listener);
-			break;
-		case MODE_ASK_FOR_RATE:
-			builder.setPositiveButton(getAskForRatePositiveLabel(), listener);
-			builder.setNegativeButton(getAskForRateNegativeLabel(), listener);
-			break;
-		default:
-			return null;
-		}
-
-		builder.setCancelable(isDialogCancelable());
-
-		AlertDialog dialog = builder.create();
-		/*
-		 * if (activity != null && !activity.isFinishing()) { dialog.show(); }
-		 */ return dialog;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see
-	 * com.winsontan520.wversionmanagertest.IWVersionManager#getUpdateNowLabel()
-	 */
-	@Override
-	public String getUpdateNowLabel() {
-		return updateNowLabel != null ? updateNowLabel : "Update now";
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see
-	 * com.winsontan520.wversionmanagertest.IWVersionManager#setUpdateNowLabel
-	 * (java.lang.String)
-	 */
-	@Override
-	public void setUpdateNowLabel(String updateNowLabel) {
-		this.updateNowLabel = updateNowLabel;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#
-	 * getRemindMeLaterLabel ()
-	 */
-	@Override
-	public String getRemindMeLaterLabel() {
-		return remindMeLaterLabel != null ? remindMeLaterLabel : "Remind me later";
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#
-	 * setRemindMeLaterLabel (java.lang.String)
-	 */
-	@Override
-	public void setRemindMeLaterLabel(String remindMeLaterLabel) {
-		this.remindMeLaterLabel = remindMeLaterLabel;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#
-	 * getIgnoreThisVersionLabel()
-	 */
-	@Override
-	public String getIgnoreThisVersionLabel() {
-		return ignoreThisVersionLabel != null ? ignoreThisVersionLabel : "Ignore this version";
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#
-	 * setIgnoreThisVersionLabel(java.lang.String)
-	 */
-	@Override
-	public void setIgnoreThisVersionLabel(String ignoreThisVersionLabel) {
-		this.ignoreThisVersionLabel = ignoreThisVersionLabel;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see
-	 * com.winsontan520.wversionmanagertest.IWVersionManager#setIcon(android
-	 * .graphics.drawable.Drawable)
-	 */
-	@Override
-	public void setIcon(Drawable icon) {
-		this.icon = icon;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see
-	 * com.winsontan520.wversionmanagertest.IWVersionManager#setTitle(java.lang
-	 * .String)
-	 */
-	@Override
-	public void setTitle(String title) {
-		this.title = title;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see
-	 * com.winsontan520.wversionmanagertest.IWVersionManager#setMessage(java
-	 * .lang.String)
-	 */
-	@Override
-	public void setMessage(String message) {
-		this.message = message;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#getMessage()
-	 */
-	@Override
-	public String getMessage() {
-		String defaultMessage = null;
-		switch (mMode) {
-		case MODE_CHECK_VERSION:
-			defaultMessage = "What's new in this version";
-			break;
-		case MODE_ASK_FOR_RATE:
-			defaultMessage = "Please rate us!";
-			break;
-		}
-
-		return message != null ? message : defaultMessage;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#getTitle()
-	 */
-	@Override
-	public String getTitle() {
-		String defaultTitle = null;
-		switch (mMode) {
-		case MODE_CHECK_VERSION:
-			defaultTitle = "New Update Available";
-			break;
-		case MODE_ASK_FOR_RATE:
-			defaultTitle = "Rate this app";
-			break;
-		}
-		return title != null ? title : defaultTitle;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#getIcon()
-	 */
-	@Override
-	public Drawable getIcon() {
-		return icon != null ? icon : getDefaultAppIcon();
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#getUpdateUrl()
-	 */
-	@Override
-	public String getUpdateUrl() {
-		return updateUrl != null ? updateUrl : getGooglePlayStoreUrl();
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see
-	 * com.winsontan520.wversionmanagertest.IWVersionManager#setUpdateUrl(java
-	 * .lang.String)
-	 */
-	@Override
-	public void setUpdateUrl(String updateUrl) {
-		this.updateUrl = updateUrl;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#
-	 * getVersionContentUrl ()
-	 */
-	@Override
-	public String getVersionContentUrl() {
-		return versionContentUrl;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#
-	 * setVersionContentUrl (java.lang.String)
-	 */
-	@Override
-	public void setVersionContentUrl(String versionContentUrl) {
-		this.versionContentUrl = versionContentUrl;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#
-	 * setVersionContentUrl (java.lang.String)
-	 */
-	@Override
-	public int getReminderTimer() {
-		return reminderTimer > 0 ? reminderTimer : (1 * 60); // default value 60
-																// minutes
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see
-	 * com.winsontan520.wversionmanagertest.IWVersionManager#setReminderTimer
-	 * (int)
-	 */
-	@Override
-	public void setReminderTimer(int minutes) {
-		if (minutes > 0) {
-			reminderTimer = minutes;
-		}
-	}
-
-	private void updateNow(String url) {
-		if (url != null) {
-			try {
-				Uri uri = Uri.parse(url);
-				Intent intent = new Intent(Intent.ACTION_VIEW, uri);
-				activity.startActivity(intent);
-			} catch (Exception e) {
-				Log.e(TAG, "is update url correct?" + e);
-			}
-		}
-
-	}
-
-	private void remindMeLater(int reminderTimer) {
-		Calendar c = Calendar.getInstance();
-		long currentTimeStamp = c.getTimeInMillis();
-
-		c.add(Calendar.MINUTE, reminderTimer);
-		long reminderTimeStamp = c.getTimeInMillis();
-
-		if (BuildConfig.DEBUG) {
-			Log.v(TAG, "currentTimeStamp=" + currentTimeStamp);
-			Log.v(TAG, "reminderTimeStamp=" + reminderTimeStamp);
-		}
-
-		setReminderTime(reminderTimeStamp);
-	}
-
-	private void setReminderTime(long reminderTimeStamp) {
-		PreferenceManager.getDefaultSharedPreferences(activity).edit().putLong(PREF_REMINDER_TIME, reminderTimeStamp)
-				.commit();
-	}
-
-	private long getReminderTime() {
-		return PreferenceManager.getDefaultSharedPreferences(activity).getLong(PREF_REMINDER_TIME, 0);
-	}
-
-	private void ignoreThisVersion() {
-		PreferenceManager.getDefaultSharedPreferences(activity).edit().putInt(PREF_IGNORE_VERSION_CODE, mVersionCode)
-				.commit();
-	}
-
-	private String getGooglePlayStoreUrl() {
-		String id = activity.getApplicationInfo().packageName; // current google
-																// play is using
-																// package name
-																// as id
-		return "market://details?id=" + id;
-	}
-
-	private class AlertDialogButtonListener implements DialogInterface.OnClickListener {
-		private int bitMask;
-
-		public AlertDialogButtonListener(int bitMask) {
-			this.bitMask = bitMask;
-		}
-
-		@Override
-		public void onClick(DialogInterface dialog, int which) {
-			switch (which) {
-			case AlertDialog.BUTTON_POSITIVE:
-				updateNow(getUpdateUrl());
-				callerActivity.exit();
-				break;
-			case AlertDialog.BUTTON_NEUTRAL:
-				remindMeLater(getReminderTimer());
-				callerActivity.showDialogTree(bitMask);
-				break;
-			case AlertDialog.BUTTON_NEGATIVE:
-				ignoreThisVersion();
-				callerActivity.showDialogTree(bitMask);
-				break;
-			}
-		}
-	}
-
-	class VersionContentRequest extends AsyncTask<String, Void, String> {
-		Context context;
-		int statusCode;
-
-		public VersionContentRequest(Context context) {
-			this.context = context;
-		}
-
-		@Override
-		protected String doInBackground(String... uri) {
-			DefaultHttpClient client = new DefaultHttpClient();
-			String responseBody = null;
-			HttpResponse httpResponse = null;
-			ByteArrayOutputStream out = null;
-
-			try {
-				HttpGet httpget = new HttpGet(uri[0]);
-				httpResponse = client.execute(httpget);
-				statusCode = httpResponse.getStatusLine().getStatusCode();
-
-				if (statusCode == HttpStatus.SC_OK) {
-					out = new ByteArrayOutputStream();
-					httpResponse.getEntity().writeTo(out);
-					responseBody = out.toString();
-				}
-
-			} catch (Exception e) {
-				Log.e(TAG, e.toString());
-			} finally {
-				if (out != null) {
-					try {
-						out.close();
-					} catch (IOException e) {
-						Log.e(TAG, e.toString());
-					}
-				}
-			}
-			return responseBody;
-		}
-
-		@Override
-		protected void onPostExecute(String result) {
-			mVersionCode = 0;
-			String content = null;
-			if (statusCode != HttpStatus.SC_OK) {
-				Log.e(TAG, "Response invalid. status code = " + statusCode);
-				if (mOnReceiveListener != null) {
-					mOnReceiveListener.onReceive(statusCode, result);
-				}
-			} else {
-				try {
-					if (!result.startsWith("{")) { // for response who append
-													// with unknown char
-						result = result.substring(1);
-					}
-					mResult = result;
-					if (BuildConfig.DEBUG) {
-						Log.d(TAG, "status = " + statusCode);
-						Log.d(TAG, "result = " + mResult);
-					}
-
-					// show default dialog if no listener is set OR return true
-					if (mOnReceiveListener == null || mOnReceiveListener.onReceive(statusCode, result)) {
-						// json format from server:
-						JSONObject json = (JSONObject) new JSONTokener(mResult).nextValue();
-						mVersionCode = json.optInt("version_code");
-						content = json.optString("content");
-						int currentVersionCode = getCurrentVersionCode();
-						if (currentVersionCode < mVersionCode) {
-							// new versionCode will always higher than
-							// currentVersionCode
-							if (mVersionCode != getIgnoreVersionCode()) {
-								// set dialog message
-								setMessage(content);
-								saveSettings(context, TAG_VERSION_SHOWED, true);
-							}
-						}
-					}
-
-				} catch (JSONException e) {
-					Log.e(TAG, "is your server response have valid json format?");
-				} catch (Exception e) {
-					Log.e(TAG, e.toString());
-				}
-			}
-		}
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see com.winsontan520.wversionmanagertest.IWVersionManager#
-	 * getCurrentVersionCode ()
-	 */
-	@Override
-	public int getCurrentVersionCode() {
-		int currentVersionCode = 0;
-		PackageInfo pInfo;
-		try {
-			pInfo = activity.getPackageManager().getPackageInfo(activity.getPackageName(), 0);
-			currentVersionCode = pInfo.versionCode;
-		} catch (NameNotFoundException e) {
-			// return 0
-		}
-		return currentVersionCode;
-	}
-
-	@Override
-	public int getIgnoreVersionCode() {
-		return PreferenceManager.getDefaultSharedPreferences(activity).getInt(PREF_IGNORE_VERSION_CODE, 1);
-	}
-
-	@Override
-	public CustomTagHandler getCustomTagHandler() {
-		return customTagHandler;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * 
-	 * @see
-	 * com.winsontan520.wversionmanagertest.IWVersionManager#setCustomTagHandler
-	 * (com.winsontan520.wversionmanagertest.WVersionManager.CustomTagHandler)
-	 */
-	@Override
-	public void setCustomTagHandler(CustomTagHandler customTagHandler) {
-		this.customTagHandler = customTagHandler;
-	}
-
-	public boolean isDialogCancelable() {
-		return mDialogCancelable;
-	}
-
-	public void setDialogCancelable(boolean dialogCancelable) {
-		mDialogCancelable = dialogCancelable;
-	}
-
-	public void askForRate() {
-		mMode = MODE_ASK_FOR_RATE;
-		// showDialog();
-	}
-
-	public String getAskForRatePositiveLabel() {
-		return mAskForRatePositiveLabel == null ? "OK" : mAskForRatePositiveLabel;
-	}
-
-	public void setAskForRatePositiveLabel(String askForRatePositiveLabel) {
-		mAskForRatePositiveLabel = askForRatePositiveLabel;
-	}
-
-	public String getAskForRateNegativeLabel() {
-		return mAskForRateNegativeLabel == null ? "Not now" : mAskForRateNegativeLabel;
-	}
-
-	public void setAskForRateNegativeLabel(String askForRateNegativeLabel) {
-		mAskForRateNegativeLabel = askForRateNegativeLabel;
-	}
-
-	@Override
-	public void setOnReceiveListener(OnReceiveListener listener) {
-		this.mOnReceiveListener = listener;
-	}
-
-}
diff --git a/build/android/src/mobi/MultiCraft/DialogHelper.java b/build/android/src/mobi/MultiCraft/DialogHelper.java
deleted file mode 100644
index 26201d212..000000000
--- a/build/android/src/mobi/MultiCraft/DialogHelper.java
+++ /dev/null
@@ -1,114 +0,0 @@
-package mobi.MultiCraft;
-
-import static mobi.MultiCraft.PreferencesHelper.TAG_HELP_SHOWED;
-import static mobi.MultiCraft.PreferencesHelper.*;
-
-import com.winsontan520.wversionmanager.library.WVersionManager;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.app.Dialog;
-import android.content.Context;
-import android.graphics.drawable.ColorDrawable;
-import android.view.View;
-import android.view.View.OnClickListener;
-import android.view.Window;
-import android.widget.Button;
-import android.widget.TextView;
-import android.widget.Toast;
-
-/**
- * Helpful utilities used in MainActivity
- */
-public class DialogHelper {
-	private Button positive, negative;
-	private Dialog dialog;
-	private Context mContext;
-	private IDialogHelperCallback callerActivity;
-
-	public DialogHelper(Context context) {
-		mContext = context;
-		callerActivity = (IDialogHelperCallback) context;
-	}
-
-	private void dialogInit(int panel, int positiveBtn, int negativeBtn, int messageText) {
-		dialog = new Dialog(mContext);
-		dialog.requestWindowFeature(panel);
-		dialog.setContentView(R.layout.dialog_template);
-		positive = (Button) dialog.findViewById(R.id.positive);
-		negative = (Button) dialog.findViewById(R.id.negative);
-		TextView message = (TextView) dialog.findViewById(R.id.message);
-		positive.setText(positiveBtn);
-		negative.setText(negativeBtn);
-		message.setText(messageText);
-		dialog.setCancelable(false);
-		dialog.getWindow().setBackgroundDrawable(new ColorDrawable(R.color.semi_transparent));
-	}
-
-	@SuppressLint("InflateParams")
-	public Dialog showHelpDialog(final int bitMask) {
-		dialogInit(Window.FEATURE_NO_TITLE, R.string.ok, R.string.forget, R.string.dialog_instruction);
-		positive.setOnClickListener(new OnClickListener() {
-			@Override
-			public void onClick(View v) {
-				dialog.dismiss();
-				saveSettings(mContext, TAG_HELP_SHOWED, false);
-				callerActivity.showDialogTree(bitMask);
-			}
-		});
-		negative.setVisibility(View.GONE);
-		// dialog.show();
-		return dialog;
-	}
-
-	public Dialog showMemoryDialog(final int bitMask) {
-		dialogInit(Window.FEATURE_OPTIONS_PANEL, R.string.memory_continue, R.string.memory_close,
-				R.string.memory_warning);
-		positive.setOnClickListener(new OnClickListener() {
-			@Override
-			public void onClick(View v) {
-				dialog.dismiss();
-				Toast.makeText(mContext, R.string.memory_lags, Toast.LENGTH_SHORT).show();
-				callerActivity.showDialogTree(bitMask);
-			}
-		});
-		negative.setVisibility(View.GONE);
-		// dialog.show();
-		return dialog;
-	}
-
-	public Dialog showVersionDialog(int bitMask) {
-		WVersionManager versionManager = new WVersionManager((Activity) mContext);
-		versionManager.setVersionContentUrl("http://MultiCraft.mobi/ver/MultiCraft.txt");
-		versionManager.checkVersion();
-		versionManager.setUpdateNowLabel((String) mContext.getResources().getText(R.string.update_yes));
-		versionManager.setRemindMeLaterLabel((String) mContext.getResources().getText(R.string.update_no));
-		versionManager.setIgnoreThisVersionLabel((String) mContext.getResources().getText(R.string.update_ignore));
-		return versionManager.showDialog(bitMask);
-	}
-
-	public Dialog showRateDialog(int bitMask) {
-		return RateThisApp.showRateDialog(mContext, bitMask);
-	}
-	/*
-	 * public void showCPUDialog() { dialogInit(Window.FEATURE_OPTIONS_PANEL,
-	 * R.string.memory_continue, R.string.memory_close, R.string.cpu_warning);
-	 * positive.setOnClickListener(new OnClickListener() {
-	 * 
-	 * @Override public void onClick(View v) { dialog.dismiss(); } });
-	 * negative.setVisibility(View.GONE); dialog.show(); }
-	 */
-
-	public void showNotEnoughSpaceDialog() {
-		dialogInit(Window.FEATURE_OPTIONS_PANEL, R.string.space_ok, R.string.memory_close, R.string.not_enough_space);
-		negative.setVisibility(View.GONE);
-		positive.setOnClickListener(new OnClickListener() {
-			@Override
-			public void onClick(View v) {
-				dialog.dismiss();
-			}
-		});
-		dialog.show();
-	}
-
-}
diff --git a/build/android/src/mobi/MultiCraft/IDialogHelperCallback.java b/build/android/src/mobi/MultiCraft/IDialogHelperCallback.java
deleted file mode 100644
index eb6d23faf..000000000
--- a/build/android/src/mobi/MultiCraft/IDialogHelperCallback.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package mobi.MultiCraft;
-
-/**
- * Callback for MainActivity init and runGame methods
- */
-public interface IDialogHelperCallback {
-
-	public void init();
-
-	public void runGame();
-
-	public void exit();
-
-	public void showDialogTree(int bitMask);
-}
diff --git a/build/android/src/mobi/MultiCraft/MCNativeActivity.java b/build/android/src/mobi/MultiCraft/MCNativeActivity.java
deleted file mode 100644
index cf8581d61..000000000
--- a/build/android/src/mobi/MultiCraft/MCNativeActivity.java
+++ /dev/null
@@ -1,109 +0,0 @@
-package mobi.MultiCraft;
-
-import android.app.NativeActivity;
-import android.content.Intent;
-import android.os.Bundle;
-import android.view.WindowManager;
-
-public class MCNativeActivity extends NativeActivity {
-
-	private int m_MessagReturnCode;
-	private String m_MessageReturnValue;
-
-	@Override
-	public void onCreate(Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-		getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
-		m_MessagReturnCode = -1;
-		m_MessageReturnValue = "";
-
-	}
-
-	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
-		if (requestCode == 101) {
-			if (resultCode == RESULT_OK) {
-				String text = data.getStringExtra("text");
-				m_MessagReturnCode = 0;
-				m_MessageReturnValue = text;
-			} else {
-				m_MessagReturnCode = 1;
-			}
-		}
-	}
-
-
-	public void copyAssets() {
-	}
-
-	public void showDialog(String acceptButton, String hint, String current,
-			int editType) {
-
-		Intent intent = new Intent(this, MultiCraftTextEntry.class);
-		Bundle params = new Bundle();
-		params.putString("acceptButton", acceptButton);
-		params.putString("hint", hint);
-		params.putString("current", current);
-		params.putInt("editType", editType);
-		intent.putExtras(params);
-		startActivityForResult(intent, 101);
-		m_MessageReturnValue = "";
-		m_MessagReturnCode = -1;
-	}
-
-	public static native void putMessageBoxResult(String text);
-
-	/* ugly code to workaround putMessageBoxResult not beeing found */
-	public int getDialogState() {
-		return m_MessagReturnCode;
-	}
-
-	public String getDialogValue() {
-		m_MessagReturnCode = -1;
-		return m_MessageReturnValue;
-	}
-
-	public float getDensity() {
-		return getResources().getDisplayMetrics().density;
-	}
-
-	public int getDisplayWidth() {
-		return getResources().getDisplayMetrics().widthPixels;
-	}
-
-	public int getDisplayHeight() {
-		return getResources().getDisplayMetrics().heightPixels;
-	}
-
-	@Override
-	protected void onActivityResult(int requestCode, int resultCode,
-			Intent data) {
-		if (requestCode == 101) {
-			if (resultCode == RESULT_OK) {
-				String text = data.getStringExtra("text");
-				m_MessagReturnCode = 0;
-				m_MessageReturnValue = text;
-			}
-			else {
-				m_MessagReturnCode = 1;
-			}
-		}
-	}
-
-	static {
-		System.loadLibrary("openal");
-		System.loadLibrary("ogg");
-		System.loadLibrary("vorbis");
-		System.loadLibrary("ssl");
-		System.loadLibrary("crypto");
-		System.loadLibrary("gmp");
-		System.loadLibrary("iconv");
-
-		// We don't have to load libminetest.so ourselves,
-		// but if we do, we get nicer logcat errors when
-		// loading fails.
-		System.loadLibrary("minetest");
-	}
-
-	private int m_MessagReturnCode;
-	private String m_MessageReturnValue;
-}
diff --git a/build/android/src/mobi/MultiCraft/MainActivity.java b/build/android/src/mobi/MultiCraft/MainActivity.java
deleted file mode 100644
index 60d93fcbc..000000000
--- a/build/android/src/mobi/MultiCraft/MainActivity.java
+++ /dev/null
@@ -1,380 +0,0 @@
-package mobi.MultiCraft;
-
-import android.app.Activity;
-import android.app.Dialog;
-import android.app.ProgressDialog;
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.graphics.drawable.Drawable;
-import android.os.AsyncTask;
-import android.os.Bundle;
-import android.os.Environment;
-import android.util.Log;
-import android.view.View;
-import android.view.WindowManager;
-import android.widget.ProgressBar;
-import android.widget.TextView;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.FileReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.io.PrintWriter;
-import java.util.Locale;
-
-import static mobi.MultiCraft.PreferencesHelper.DIALOGS;
-import static mobi.MultiCraft.PreferencesHelper.HELP_DIALOG;
-import static mobi.MultiCraft.PreferencesHelper.MEMORY_DIALOG;
-import static mobi.MultiCraft.PreferencesHelper.RATE_DIALOG;
-import static mobi.MultiCraft.PreferencesHelper.TAG_SHORTCUT_CREATED;
-import static mobi.MultiCraft.PreferencesHelper.VERSION_DIALOG;
-import static mobi.MultiCraft.PreferencesHelper.getBitMask;
-import static mobi.MultiCraft.PreferencesHelper.isCreateShortcut;
-import static mobi.MultiCraft.PreferencesHelper.loadSettings;
-import static mobi.MultiCraft.PreferencesHelper.saveSettings;
-
-public class MainActivity extends Activity implements IDialogHelperCallback {
-    public final static String TAG = "Error";
-    public final static String CREATE_SHORTCUT = "com.android.launcher.action.INSTALL_SHORTCUT";
-    public final static String FILES = "Files.zip";
-    public final static String NOMEDIA = ".nomedia";
-    public final static String STABLE_VER = "1.0.1";
-    private ProgressDialog mProgressDialog;
-    private TextView mProgressTextView, mWarningTextView;
-    private String unzipLocation = Environment.getExternalStorageDirectory() + "/MultiCraft/";
-    private DialogHelper dialogHelper;
-    private ProgressBar mProgressBar;
-    private MyBroadcastReceiver myBroadcastReceiver;
-    private MyBroadcastReceiver_Update myBroadcastReceiver_Update;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_main);
-        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
-        RateThisApp.onStart(this);
-        loadSettings(this);
-        dialogHelper = new DialogHelper(this);
-        registerReceivers();
-        if (!isTaskRoot()) {
-            finish();
-            return;
-        }
-        showDialogTree(getBitMask());
-
-    }
-
-    @Override
-    public void showDialogTree(int bitMask) {
-        if (bitMask == 0) {
-            init();
-            return;
-        }
-        for (int dialog : DIALOGS) {
-            Dialog currentDialog = null;
-            if ((bitMask & dialog) > 0) {
-                bitMask -= dialog;
-                switch (dialog) {
-                    case MEMORY_DIALOG:
-                        currentDialog = dialogHelper.showMemoryDialog(bitMask);
-                        break;
-                    case RATE_DIALOG:
-                        currentDialog = dialogHelper.showRateDialog(bitMask);
-                        break;
-                    case VERSION_DIALOG:
-                        currentDialog = dialogHelper.showVersionDialog(bitMask);
-                        break;
-                    case HELP_DIALOG:
-                        currentDialog = dialogHelper.showHelpDialog(bitMask);
-                        break;
-                }
-                if (currentDialog != null) {
-                    currentDialog.show();
-                }
-                break;
-            }
-
-        }
-    }
-
-    @Override
-    protected void onDestroy() {
-        super.onDestroy();
-        dismissProgressDialog();
-        unregisterReceiver(myBroadcastReceiver);
-        unregisterReceiver(myBroadcastReceiver_Update);
-    }
-
-    private void addShortcut() {
-        saveSettings(this, TAG_SHORTCUT_CREATED, false);
-        Intent shortcutIntent = new Intent(getApplicationContext(), MainActivity.class);
-        shortcutIntent.setAction(Intent.ACTION_MAIN);
-        Intent addIntent = new Intent();
-        addIntent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
-        addIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME, getString(R.string.app_name));
-        addIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
-                Intent.ShortcutIconResource.fromContext(getApplicationContext(), R.drawable.ic_launcher));
-        addIntent.setAction(CREATE_SHORTCUT);
-        getApplicationContext().sendBroadcast(addIntent);
-    }
-
-    @Override
-    @SuppressWarnings("deprecation")
-    public void init() {
-        if (isCreateShortcut())
-            addShortcut();
-        mProgressTextView = (TextView) findViewById(R.id.progress_textView);
-        mProgressBar = (ProgressBar) findViewById(R.id.PB1);
-        mWarningTextView = (TextView) findViewById(R.id.warning);
-        Drawable draw;
-        draw = getResources().getDrawable(R.drawable.custom_progress_bar);
-        mProgressBar.setProgressDrawable(draw);
-        Utilities util = new Utilities();
-        util.createDirAndFiles();
-        util.checkVersion();
-    }
-
-    @Override
-    public void exit() {
-        finish();
-    }
-
-    private void registerReceivers() {
-        myBroadcastReceiver = new MyBroadcastReceiver();
-        myBroadcastReceiver_Update = new MyBroadcastReceiver_Update();
-        IntentFilter intentFilter = new IntentFilter(UnzipService.ACTION_MyIntentService);
-        intentFilter.addCategory(Intent.CATEGORY_DEFAULT);
-        registerReceiver(myBroadcastReceiver, intentFilter);
-        IntentFilter intentFilter_update = new IntentFilter(UnzipService.ACTION_MyUpdate);
-        intentFilter_update.addCategory(Intent.CATEGORY_DEFAULT);
-        registerReceiver(myBroadcastReceiver_Update, intentFilter_update);
-    }
-
-    private void showSpinnerDialog(int message) {
-        if (mProgressDialog == null) {
-            mProgressDialog = new ProgressDialog(MainActivity.this);
-            mProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
-            mProgressDialog.setCancelable(false);
-        }
-        mProgressDialog.setMessage(getString(message));
-        mProgressDialog.show();
-    }
-
-    private void dismissProgressDialog() {
-        if (mProgressDialog != null && mProgressDialog.isShowing()) {
-            mProgressDialog.dismiss();
-        }
-    }
-
-    @Override
-    public void runGame() {
-        showSpinnerDialog(R.string.loading);
-        new Thread(new Runnable() {
-            public void run() {
-                Intent intent = new Intent(MainActivity.this, MCNativeActivity.class);
-                intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK);
-                startActivity(intent);
-                if (isFinishing())
-                    return;
-                dismissProgressDialog();
-            }
-        }).start();
-        File file = new File(Environment.getExternalStorageDirectory(), FILES);
-        if (file.exists())
-            file.delete();
-    }
-
-    private void startUnzipService(String file) throws IOException {
-        // Start MyIntentService
-        Intent intentMyIntentService = new Intent(this, UnzipService.class);
-        intentMyIntentService.putExtra(UnzipService.EXTRA_KEY_IN_FILE, file);
-        intentMyIntentService.putExtra(UnzipService.EXTRA_KEY_IN_LOCATION, unzipLocation);
-        startService(intentMyIntentService);
-
-    }
-
-    public class MyBroadcastReceiver extends BroadcastReceiver {
-
-        @Override
-        public void onReceive(Context context, Intent intent) {
-            String result = intent.getStringExtra(UnzipService.EXTRA_KEY_OUT);
-            if ("Success".equals(result)) {
-                runGame();
-            }
-
-        }
-    }
-
-    public class MyBroadcastReceiver_Update extends BroadcastReceiver {
-
-        @Override
-        public void onReceive(Context context, Intent intent) {
-            int update = intent.getIntExtra(UnzipService.EXTRA_KEY_UPDATE, 0);
-            mProgressBar.setVisibility(View.VISIBLE);
-            mProgressTextView.setVisibility(View.VISIBLE);
-            mWarningTextView.setVisibility(View.VISIBLE);
-            mProgressBar.setProgress(update);
-            mProgressTextView.setText(update + "%");
-        }
-    }
-
-    private class DeleteTask extends AsyncTask<String, Void, Void> {
-        @Override
-        protected void onPreExecute() {
-            super.onPreExecute();
-            showSpinnerDialog(R.string.rm_old);
-        }
-
-        @Override
-        protected Void doInBackground(String... params) {
-            for (String p : params) {
-                deleteFiles(p);
-            }
-            return null;
-        }
-
-        @Override
-        protected void onPostExecute(Void result) {
-            if (isFinishing())
-                return;
-            dismissProgressDialog();
-            new CopyZip().execute(FILES);
-        }
-
-        private void deleteFiles(String path) {
-            File file = new File(path);
-            if (file.exists()) {
-                String deleteCmd = "rm -r " + path;
-                Runtime runtime = Runtime.getRuntime();
-                try {
-                    runtime.exec(deleteCmd);
-                } catch (IOException e) {
-                    Log.e(TAG, e.getLocalizedMessage());
-                }
-            }
-        }
-    }
-
-    private class CopyZip extends AsyncTask<String, Void, String> {
-        String zipName;
-
-        @Override
-        protected void onPreExecute() {
-            super.onPreExecute();
-        }
-
-        @Override
-        protected String doInBackground(String... params) {
-            zipName = params[0];
-            copyAssets(zipName);
-            return "Done";
-
-        }
-
-        @Override
-        protected void onPostExecute(String result) {
-            if (PhoneInformation.getAvailableSpaceInMB() > 30) {
-                try {
-                    startUnzipService(Environment.getExternalStorageDirectory() + "/" + zipName);
-                } catch (IOException e) {
-                    Log.e(TAG, e.getMessage());
-                }
-            } else
-                dialogHelper.showNotEnoughSpaceDialog();
-        }
-
-        private void copyAssets(String zipName) {
-            InputStream in;
-            OutputStream out;
-            try {
-                in = getAssets().open(zipName);
-                out = new FileOutputStream(Environment.getExternalStorageDirectory() + "/" + zipName);
-                copyFile(in, out);
-                in.close();
-                out.flush();
-                out.close();
-            } catch (IOException e) {
-                Log.e(TAG, "Failed to copy asset file: " + e.getMessage());
-            }
-        }
-
-        private void copyFile(InputStream in, OutputStream out) throws IOException {
-            byte[] buffer = new byte[1024];
-            int read;
-            while ((read = in.read(buffer)) != -1) {
-                out.write(buffer, 0, read);
-            }
-        }
-    }
-
-    private class Utilities {
-
-        private void createLangFile() {
-            PrintWriter writer;
-            try {
-                writer = new PrintWriter(unzipLocation + "lang.txt", "UTF-8");
-                if ("Russian".equals(Locale.getDefault().getDisplayLanguage())) {
-                    writer.println("ru");
-                } else {
-                    writer.println("en");
-                }
-                writer.close();
-            } catch (Exception e) {
-                Log.e(TAG, e.getLocalizedMessage());
-            }
-
-        }
-
-        private void createDirAndFiles() {
-            try {
-                File folder = new File(unzipLocation);
-                if (!(folder.exists()))
-                    folder.mkdirs();
-                File myFile = new File(unzipLocation, NOMEDIA);
-                if (!myFile.exists())
-                    myFile.createNewFile();
-                createLangFile();
-            } catch (IOException e) {
-                Log.e(TAG, e.getMessage());
-            }
-        }
-
-        private void checkVersion() {
-            File version = new File(unzipLocation + "ver.txt");
-            if (version.exists()) {
-                if (isCurrent(version))
-                    runGame();
-                else
-                    startDeletion();
-
-            } else {
-                startDeletion();
-            }
-        }
-
-        private void startDeletion() {
-            new DeleteTask().execute(unzipLocation + "cache", unzipLocation + "games", unzipLocation + "builtin",
-                    unzipLocation + "fonts", unzipLocation + "debug.txt");
-
-        }
-
-        @SuppressWarnings("resource")
-        private boolean isCurrent(File file) {
-            String line = null;
-            try {
-                line = new BufferedReader(new FileReader(file)).readLine();
-            } catch (IOException e) {
-                Log.e(TAG, e.getMessage());
-            }
-            if (line == null) {
-                line = "-999";
-            }
-            return line.equals(STABLE_VER);
-        }
-    }
-}
\ No newline at end of file
diff --git a/build/android/src/mobi/MultiCraft/MultiCraftTextEntry.java b/build/android/src/mobi/MultiCraft/MultiCraftTextEntry.java
deleted file mode 100644
index b2ce16a67..000000000
--- a/build/android/src/mobi/MultiCraft/MultiCraftTextEntry.java
+++ /dev/null
@@ -1,85 +0,0 @@
-package mobi.MultiCraft;
-
-import android.app.Activity;
-import android.app.AlertDialog;
-import android.content.DialogInterface;
-import android.content.Intent;
-import android.os.Bundle;
-import android.text.InputType;
-import android.view.KeyEvent;
-import android.view.View;
-import android.view.View.OnKeyListener;
-import android.widget.EditText;
-
-public class MultiCraftTextEntry extends Activity {
-	public AlertDialog mTextInputDialog;
-	public EditText mTextInputWidget;
-
-	private final int MultiLineTextInput = 1;
-	private final int SingleLinePasswordInput = 3;
-
-	@Override
-	public void onCreate(Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-
-		Bundle b = getIntent().getExtras();
-		String acceptButton = b.getString("EnterButton");
-		String hint = b.getString("hint");
-		String current = b.getString("current");
-		int editType = b.getInt("editType");
-
-		AlertDialog.Builder builder = new AlertDialog.Builder(this);
-		mTextInputWidget = new EditText(this);
-		mTextInputWidget.setHint(hint);
-		mTextInputWidget.setText(current);
-		mTextInputWidget.setMinWidth(300);
-		if (editType == SingleLinePasswordInput) {
-			mTextInputWidget.setInputType(InputType.TYPE_CLASS_TEXT
-					| InputType.TYPE_TEXT_VARIATION_PASSWORD);
-		} else {
-			mTextInputWidget.setInputType(InputType.TYPE_CLASS_TEXT);
-		}
-
-		builder.setView(mTextInputWidget);
-
-		if (editType == MultiLineTextInput) {
-			builder.setPositiveButton(acceptButton,
-					new DialogInterface.OnClickListener() {
-						public void onClick(DialogInterface dialog,
-								int whichButton) {
-							pushResult(mTextInputWidget.getText().toString());
-						}
-					});
-		}
-
-		builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
-			public void onCancel(DialogInterface dialog) {
-				pushResult(mTextInputWidget.getText().toString());
-			}
-		});
-
-		mTextInputWidget.setOnKeyListener(new OnKeyListener() {
-			@Override
-			public boolean onKey(View view, int KeyCode, KeyEvent event) {
-				if (KeyCode == KeyEvent.KEYCODE_ENTER) {
-
-					pushResult(mTextInputWidget.getText().toString());
-					return true;
-				}
-				return false;
-			}
-		});
-
-		mTextInputDialog = builder.create();
-		mTextInputDialog.show();
-	}
-
-	public void pushResult(String text) {
-		Intent resultData = new Intent();
-		resultData.putExtra("text", text);
-		setResult(Activity.RESULT_OK, resultData);
-		mTextInputDialog.dismiss();
-		finish();
-	}
-
-}
diff --git a/build/android/src/mobi/MultiCraft/PhoneInformation.java b/build/android/src/mobi/MultiCraft/PhoneInformation.java
deleted file mode 100644
index 03b976067..000000000
--- a/build/android/src/mobi/MultiCraft/PhoneInformation.java
+++ /dev/null
@@ -1,83 +0,0 @@
-package mobi.MultiCraft;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileFilter;
-import java.io.FileReader;
-import java.io.IOException;
-import java.util.regex.Pattern;
-
-import android.annotation.SuppressLint;
-import android.os.Build;
-import android.os.Environment;
-import android.os.StatFs;
-
-public class PhoneInformation {
-
-	public static long getTotalMemoryInMB() {
-		long initial_memory;
-		/*
-		 * if (Build.VERSION.SDK_INT > 17) { ActivityManager actManager =
-		 * (ActivityManager)
-		 * mContext.getSystemService(Context.ACTIVITY_SERVICE);
-		 * ActivityManager.MemoryInfo memInfo = new
-		 * ActivityManager.MemoryInfo(); actManager.getMemoryInfo(memInfo);
-		 * initial_memory = memInfo.totalMem; } else {
-		 */
-		String str1 = "/proc/meminfo";
-		String str2;
-		String[] arrayOfString;
-
-		try {
-			FileReader localFileReader = new FileReader(str1);
-			BufferedReader localBufferedReader = new BufferedReader(localFileReader, 8192);
-			str2 = localBufferedReader.readLine();// meminfo
-			arrayOfString = str2.split("\\s+");
-			// total Memory
-			initial_memory = Integer.valueOf(arrayOfString[1]) * 1024;
-			localBufferedReader.close();
-		} catch (IOException e) {
-			return -1;
-		}
-		// }
-		return initial_memory / 1024 / 1024;
-	}
-
-	public static int getCoresCount() {
-		class CpuFilter implements FileFilter {
-			@Override
-			public boolean accept(final File pathname) {
-				return Pattern.matches("cpu[0-9]+", pathname.getName());
-			}
-		}
-		try {
-			final File dir = new File("/sys/devices/system/cpu/");
-			final File[] files = dir.listFiles(new CpuFilter());
-			return files.length;
-		} catch (final Exception e) {
-			return Math.max(1, Runtime.getRuntime().availableProcessors());
-		}
-	}
-
-	@SuppressLint("NewApi")
-	@SuppressWarnings("deprecation")
-	public static long getAvailableSpaceInMB() {
-		final long SIZE_KB = 1024L;
-		final long SIZE_MB = SIZE_KB * SIZE_KB;
-		long availableSpace;
-		StatFs stat = new StatFs(Environment.getExternalStorageDirectory().getPath());
-		if (Build.VERSION.SDK_INT > 17) {
-			availableSpace = stat.getAvailableBlocksLong() * stat.getBlockSizeLong();
-		} else {
-			availableSpace = (long) stat.getAvailableBlocks() * (long) stat.getBlockSize();
-		}
-		return availableSpace / SIZE_MB;
-	}
-
-	@SuppressLint("DefaultLocale")
-	public static boolean getCPUArch() {
-		String arch = System.getProperty("os.arch");
-		return arch.toLowerCase().matches(".*x86.*");
-	}
-
-}
diff --git a/build/android/src/mobi/MultiCraft/PreferencesHelper.java b/build/android/src/mobi/MultiCraft/PreferencesHelper.java
deleted file mode 100644
index 5a70fccd5..000000000
--- a/build/android/src/mobi/MultiCraft/PreferencesHelper.java
+++ /dev/null
@@ -1,59 +0,0 @@
-package mobi.MultiCraft;
-
-import com.winsontan520.wversionmanager.library.WVersionManager;
-
-import android.app.Activity;
-import android.content.Context;
-import android.content.SharedPreferences;
-
-public class PreferencesHelper {
-	public static final int MEMORY_DIALOG = 1;
-	public static final int VERSION_DIALOG = 1 << 1;
-	public static final int RATE_DIALOG = 1 << 2;
-	public static final int HELP_DIALOG = 1 << 3;
-	public static final int[] DIALOGS = { MEMORY_DIALOG, VERSION_DIALOG, RATE_DIALOG, HELP_DIALOG };
-	public static final String SETTINGS = "settings";
-	public static final String TAG_SHORTCUT_CREATED = "createShortcut";
-	public static final String TAG_HELP_SHOWED = "showHelp";
-	public static final String TAG_RATE_SHOWED = "showRate";
-	public static final String TAG_CPU_SHOWED = "showCpuCheck";
-	public static final String TAG_VERSION_SHOWED = "showVersionCheck";
-	private static boolean disabledADS, createShortcut;
-	private static int bitMask;
-
-	public static boolean isCreateShortcut() {
-		return createShortcut;
-	}
-
-	public static int getBitMask() {
-		return bitMask;
-	}
-
-	public static boolean isAdsDisabled() {
-		return disabledADS;
-	}
-
-	public static void loadSettings(Context c) {
-		saveSettings(c, TAG_CPU_SHOWED, PhoneInformation.getCoresCount() < 4);
-		saveSettings(c, TAG_RATE_SHOWED, RateThisApp.shouldShowRateDialog());
-		WVersionManager versionManager = new WVersionManager((Activity) c);
-		versionManager.setVersionContentUrl("http://MultiCraft.mobi/ver/MultiCraft.txt");
-		versionManager.checkVersion();
-		SharedPreferences settings = c.getSharedPreferences(SETTINGS, Context.MODE_PRIVATE);
-		createShortcut = settings.getBoolean(TAG_SHORTCUT_CREATED, true);
-		boolean showHelp = settings.getBoolean(TAG_HELP_SHOWED, true);
-		boolean showRate = settings.getBoolean(TAG_RATE_SHOWED, false);
-		boolean showCPUCheck = settings.getBoolean(TAG_CPU_SHOWED, false);
-		boolean showVersionCheck = settings.getBoolean(TAG_VERSION_SHOWED, false);
-		bitMask = (showHelp ? HELP_DIALOG : 0) + (showCPUCheck ? MEMORY_DIALOG : 0) + (showRate ? RATE_DIALOG : 0)
-				+ (showVersionCheck ? VERSION_DIALOG : 0);
-	}
-
-	public static void saveSettings(Context c, String tag, boolean bool) {
-		SharedPreferences settings = c.getSharedPreferences(SETTINGS, Context.MODE_PRIVATE);
-		SharedPreferences.Editor editor = settings.edit();
-		editor.putBoolean(tag, bool);
-		editor.apply();
-	}
-
-}
\ No newline at end of file
diff --git a/build/android/src/mobi/MultiCraft/RateThisApp.java b/build/android/src/mobi/MultiCraft/RateThisApp.java
deleted file mode 100644
index bbd3a6587..000000000
--- a/build/android/src/mobi/MultiCraft/RateThisApp.java
+++ /dev/null
@@ -1,146 +0,0 @@
-package mobi.MultiCraft;
-
-import java.util.Date;
-
-import android.app.Dialog;
-import android.content.Context;
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.content.SharedPreferences.Editor;
-import android.graphics.drawable.ColorDrawable;
-import android.net.Uri;
-import android.util.Log;
-import android.widget.RatingBar;
-import android.widget.Toast;
-
-/**
- * RateThisApp<br>
- * A library to show the app rate dialog
- *
- * @author Keisuke Kobayashi <k.kobayashi.122@gmail.com>
- */
-public class RateThisApp {
-	private static final String TAG = RateThisApp.class.getSimpleName();
-	private static final String PREF_NAME = "RateThisApp";
-	private static final String GOOGLE_PLAY = "https://play.google.com/store/apps/details?id=";
-	private static final String KEY_INSTALL_DATE = "rta_install_date";
-	private static final String KEY_LAUNCH_TIMES = "rta_launch_times";
-	private static final String KEY_OPT_OUT = "rta_opt_out";
-	private static IDialogHelperCallback callerActivity;
-	private static Date mInstallDate = new Date();
-	private static int mLaunchTimes = 0;
-	private static boolean mOptOut = false;
-
-	/**
-	 * Days after installation until showing rate dialog
-	 */
-	public static final int INSTALL_DAYS = 3;
-	/**
-	 * App launching times until showing rate dialog
-	 */
-	public static final int LAUNCH_TIMES = 3;
-
-	/**
-	 * If true, print LogCat
-	 */
-	public static final boolean DEBUG = false;
-
-	/**
-	 * Call this API when the launcher activity is launched.<br>
-	 * It is better to call this API in onStart() of the launcher activity.
-	 */
-	public static void onStart(Context context) {
-		SharedPreferences pref = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
-		Editor editor = pref.edit();
-		// If it is the first launch, save the date in shared preference.
-		if (pref.getLong(KEY_INSTALL_DATE, 0) == 0L) {
-			Date now = new Date();
-			editor.putLong(KEY_INSTALL_DATE, now.getTime());
-			log("First install: " + now.toString());
-		}
-		// Increment launch times
-		int launchTimes = pref.getInt(KEY_LAUNCH_TIMES, 0);
-		launchTimes++;
-		editor.putInt(KEY_LAUNCH_TIMES, launchTimes);
-		log("Launch times; " + launchTimes);
-
-		editor.apply();
-		callerActivity = (IDialogHelperCallback) context;
-		mInstallDate = new Date(pref.getLong(KEY_INSTALL_DATE, 0));
-		mLaunchTimes = pref.getInt(KEY_LAUNCH_TIMES, 0);
-		mOptOut = pref.getBoolean(KEY_OPT_OUT, false);
-
-		printStatus(context);
-	}
-
-	public static boolean shouldShowRateDialog() {
-		if (mOptOut) {
-			return false;
-		} else {
-			if (mLaunchTimes >= LAUNCH_TIMES) {
-				return true;
-			}
-			long threshold = INSTALL_DAYS * 24 * 60 * 60 * 1000L; // msec
-			return new Date().getTime() - mInstallDate.getTime() >= threshold;
-		}
-	}
-
-	public static Dialog showRateDialog(final Context context, final int bitMask) {
-		// custom dialog
-		final Dialog dialog = new Dialog(context);
-		dialog.setContentView(R.layout.rate_layout);
-		dialog.setTitle(R.string.rta_dialog_title);
-
-		RatingBar ratingBar = (RatingBar) dialog.findViewById(R.id.ratingBar);
-		ratingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
-			@Override
-			public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {
-				if (rating > 3) {
-					dialog.dismiss();
-					String appPackage = context.getPackageName();
-					Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(GOOGLE_PLAY + appPackage));
-					context.startActivity(intent);
-					setOptOut(context, true);
-					callerActivity.exit();
-				} else {
-					Toast.makeText(context, R.string.sad, Toast.LENGTH_LONG).show();
-					dialog.dismiss();
-					clearSharedPreferences(context);
-					callerActivity.showDialogTree(bitMask);
-				}
-			}
-		});
-		dialog.getWindow().setBackgroundDrawable(new ColorDrawable(R.color.semi_transparent));
-		// dialog.show();
-		return dialog;
-	}
-
-	private static void clearSharedPreferences(Context context) {
-		SharedPreferences pref = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
-		Editor editor = pref.edit();
-		editor.remove(KEY_INSTALL_DATE);
-		editor.remove(KEY_LAUNCH_TIMES);
-		editor.apply();
-	}
-
-	private static void setOptOut(final Context context, boolean optOut) {
-		SharedPreferences pref = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
-		Editor editor = pref.edit();
-		editor.putBoolean(KEY_OPT_OUT, optOut);
-		editor.apply();
-	}
-
-	private static void printStatus(final Context context) {
-		SharedPreferences pref = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
-		log("*** RateThisApp Status ***");
-		log("Install Date: " + new Date(pref.getLong(KEY_INSTALL_DATE, 0)));
-		log("Launch Times: " + pref.getInt(KEY_LAUNCH_TIMES, 0));
-		log("Opt out: " + pref.getBoolean(KEY_OPT_OUT, false));
-	}
-
-	private static void log(String message) {
-		if (DEBUG) {
-			Log.v(TAG, message);
-		}
-	}
-}
diff --git a/build/android/src/mobi/MultiCraft/UnzipService.java b/build/android/src/mobi/MultiCraft/UnzipService.java
deleted file mode 100644
index da42bf6e7..000000000
--- a/build/android/src/mobi/MultiCraft/UnzipService.java
+++ /dev/null
@@ -1,97 +0,0 @@
-package mobi.MultiCraft;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipFile;
-import java.util.zip.ZipInputStream;
-
-import mobi.MultiCraft.R;
-import android.app.IntentService;
-import android.app.Notification;
-import android.app.NotificationManager;
-import android.content.Context;
-import android.content.Intent;
-import android.util.Log;
-
-public class UnzipService extends IntentService {
-	public final String TAG = UnzipService.class.getSimpleName();
-	public static final String ACTION_MyIntentService = "mobi.MultiCraft.RESPONSE";
-	public static final String ACTION_MyUpdate = "mobi.MultiCraft.UPDATE";
-	public static final String EXTRA_KEY_IN_FILE = "file";
-	public static final String EXTRA_KEY_IN_LOCATION = "location";
-	public static final String EXTRA_KEY_OUT = "EXTRA_OUT";
-	public static final String EXTRA_KEY_UPDATE = "EXTRA_UPDATE";
-
-	public UnzipService() {
-		super("mobi.MultiCraft.UnzipService");
-	}
-
-	private void _dirChecker(String dir, String unzipLocation) {
-		File f = new File(unzipLocation + dir);
-
-		if (!f.isDirectory()) {
-			f.mkdirs();
-		}
-	}
-
-	@Override
-	protected void onHandleIntent(Intent intent) {
-		NotificationManager mNotifyManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
-		Notification.Builder mBuilder = new Notification.Builder(this);
-		mBuilder.setContentTitle(getString(R.string.notification_title))
-				.setContentText(getString(R.string.notification_description)).setSmallIcon(R.drawable.update);
-		String file = intent.getStringExtra(EXTRA_KEY_IN_FILE);
-		String location = intent.getStringExtra(EXTRA_KEY_IN_LOCATION);
-		int id = 1;
-		mNotifyManager.notify(id, mBuilder.build());
-		int per = 0;
-		try {
-			ZipFile zipSize = new ZipFile(file);
-			try {
-				FileInputStream fin = new FileInputStream(file);
-				ZipInputStream zin = new ZipInputStream(fin);
-				ZipEntry ze;
-				while ((ze = zin.getNextEntry()) != null) {
-					if (ze.isDirectory()) {
-						per++;
-						_dirChecker(ze.getName(), location);
-					} else {
-						per++;
-						int progress = 100 * per / zipSize.size();
-						// send update
-						Intent intentUpdate = new Intent();
-						intentUpdate.setAction(ACTION_MyUpdate);
-						intentUpdate.addCategory(Intent.CATEGORY_DEFAULT);
-						intentUpdate.putExtra(EXTRA_KEY_UPDATE, progress);
-						sendBroadcast(intentUpdate);
-						FileOutputStream f_out = new FileOutputStream(location + ze.getName());
-						byte[] buffer = new byte[8192];
-						int len;
-						while ((len = zin.read(buffer)) != -1) {
-							f_out.write(buffer, 0, len);
-						}
-						f_out.close();
-						zin.closeEntry();
-						f_out.close();
-					}
-
-				}
-				zin.close();
-			} catch (FileNotFoundException e) {
-				Log.e(TAG, e.getMessage());
-			}
-		} catch (IOException e) {
-			Log.e(TAG, e.getLocalizedMessage());
-		}
-		mNotifyManager.cancel(id);
-		Intent intentResponse = new Intent();
-		intentResponse.setAction(ACTION_MyIntentService);
-		intentResponse.addCategory(Intent.CATEGORY_DEFAULT);
-		intentResponse.putExtra(EXTRA_KEY_OUT, "Success");
-		sendBroadcast(intentResponse);
-	}
-}
diff --git a/build/android/src/mobi/MultiCraft/Utilities.java b/build/android/src/mobi/MultiCraft/Utilities.java
deleted file mode 100644
index 9e0df7cc6..000000000
--- a/build/android/src/mobi/MultiCraft/Utilities.java
+++ /dev/null
@@ -1,212 +0,0 @@
-package mobi.MultiCraft;
-
-import static mobi.MultiCraft.PreferencesHelper.TAG_HELP_SHOWED;
-import static mobi.MultiCraft.PreferencesHelper.isShowHelp;
-import static mobi.MultiCraft.PreferencesHelper.saveSettings;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileFilter;
-import java.io.FileReader;
-import java.io.IOException;
-import java.util.regex.Pattern;
-
-import com.winsontan520.wversionmanager.library.WVersionManager;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.app.ActivityManager;
-import android.app.Dialog;
-import android.content.Context;
-import android.graphics.drawable.ColorDrawable;
-import android.os.Build;
-import android.os.Environment;
-import android.os.StatFs;
-import android.util.Log;
-import android.view.View;
-import android.view.View.OnClickListener;
-import android.view.Window;
-import android.widget.Button;
-import android.widget.TextView;
-import android.widget.Toast;
-
-/**
- * Helpful utilities used in MainActivity
- */
-public class Utilities {
-	private Button positive, negative;
-	private Dialog dialog;
-	private Context mContext;
-	public final String STABLE_VER = "1.0.1";
-
-	/**
-	 * Callback for MainActivity init and finishMe methods
-	 */
-	public interface IUtilitiesCallback {
-		void init();
-
-		void finishMe();
-	}
-
-	private IUtilitiesCallback callerActivity;
-
-	public Utilities(Activity activity) {
-		mContext = activity;
-		callerActivity = (IUtilitiesCallback) activity;
-	}
-
-	private void dialogInit(int panel, int positiveBtn, int negativeBtn, int messageText) {
-		dialog = new Dialog(mContext);
-		dialog.requestWindowFeature(panel);
-		dialog.setContentView(R.layout.dialog_template);
-		positive = (Button) dialog.findViewById(R.id.positive);
-		negative = (Button) dialog.findViewById(R.id.negative);
-		TextView message = (TextView) dialog.findViewById(R.id.message);
-		positive.setText(positiveBtn);
-		negative.setText(negativeBtn);
-		message.setText(messageText);
-		dialog.setCancelable(false);
-		dialog.getWindow().setBackgroundDrawable(new ColorDrawable(R.color.semi_transparent));
-	}
-
-	@SuppressLint("InflateParams")
-	public void showHelpDialog() {
-		dialogInit(Window.FEATURE_NO_TITLE, R.string.ok, R.string.forget, R.string.dialog_instruction);
-		positive.setOnClickListener(new OnClickListener() {
-			@Override
-			public void onClick(View v) {
-				dialog.dismiss();
-				saveSettings(mContext, TAG_HELP_SHOWED, false);
-				RateThisApp.showRateDialogIfNeeded(mContext);
-			}
-		});
-		negative.setVisibility(View.GONE);
-		if (isShowHelp()) {
-			dialog.show();
-		}
-	}
-
-	public void showVersionDialog() {
-		WVersionManager versionManager = new WVersionManager((Activity) mContext);
-		versionManager.setVersionContentUrl("http://MultiCraft.mobi/ver/MultiCraft.txt");
-		versionManager.checkVersion();
-		versionManager.setUpdateNowLabel((String) mContext.getResources().getText(R.string.update_yes));
-		versionManager.setRemindMeLaterLabel((String) mContext.getResources().getText(R.string.update_no));
-		versionManager.setIgnoreThisVersionLabel((String) mContext.getResources().getText(R.string.update_ignore));
-	}
-
-	public void showMemoryDialog() {
-		dialogInit(Window.FEATURE_OPTIONS_PANEL, R.string.memory_continue, R.string.memory_close,
-				R.string.memory_warning);
-		positive.setOnClickListener(new OnClickListener() {
-			@Override
-			public void onClick(View v) {
-				dialog.dismiss();
-				Toast.makeText(mContext, R.string.memory_lags, Toast.LENGTH_SHORT).show();
-				callerActivity.init();
-			}
-		});
-		negative.setOnClickListener(new OnClickListener() {
-
-			@Override
-			public void onClick(View v) {
-				dialog.dismiss();
-				callerActivity.finishMe();
-			}
-		});
-		dialog.show();
-	}
-
-	public void showNotEnoughSpaceDialog() {
-		dialogInit(Window.FEATURE_OPTIONS_PANEL, R.string.space_ok, R.string.memory_close, R.string.not_enough_space);
-		negative.setVisibility(View.GONE);
-		positive.setOnClickListener(new OnClickListener() {
-			@Override
-			public void onClick(View v) {
-				dialog.dismiss();
-				Toast.makeText(mContext, R.string.memory_lags, Toast.LENGTH_SHORT).show();
-				callerActivity.init();
-			}
-		});
-		dialog.show();
-	}
-
-	public long getTotalMemoryInMB() {
-		long initial_memory;
-		if (Build.VERSION.SDK_INT > 17) {
-			ActivityManager actManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
-			ActivityManager.MemoryInfo memInfo = new ActivityManager.MemoryInfo();
-			actManager.getMemoryInfo(memInfo);
-			initial_memory = memInfo.totalMem;
-		} else {
-			String str1 = "/proc/meminfo";
-			String str2;
-			String[] arrayOfString;
-
-			try {
-				FileReader localFileReader = new FileReader(str1);
-				BufferedReader localBufferedReader = new BufferedReader(localFileReader, 8192);
-				str2 = localBufferedReader.readLine();// meminfo
-				arrayOfString = str2.split("\\s+");
-				// total Memory
-				initial_memory = Integer.valueOf(arrayOfString[1]) * 1024;
-				localBufferedReader.close();
-			} catch (IOException e) {
-				return -1;
-			}
-		}
-		return initial_memory / 1024 / 1024;
-	}
-
-	public int getCoresCount() {
-		class CpuFilter implements FileFilter {
-			@Override
-			public boolean accept(final File pathname) {
-				return Pattern.matches("cpu[0-9]+", pathname.getName());
-			}
-		}
-		try {
-			final File dir = new File("/sys/devices/system/cpu/");
-			final File[] files = dir.listFiles(new CpuFilter());
-			return files.length;
-		} catch (final Exception e) {
-			return Math.max(1, Runtime.getRuntime().availableProcessors());
-		}
-	}
-
-	@SuppressLint("NewApi")
-	@SuppressWarnings("deprecation")
-	public long getAvailableSpaceInMB() {
-		final long SIZE_KB = 1024L;
-		final long SIZE_MB = SIZE_KB * SIZE_KB;
-		long availableSpace;
-		StatFs stat = new StatFs(Environment.getExternalStorageDirectory().getPath());
-		if (Build.VERSION.SDK_INT > 17) {
-			availableSpace = stat.getAvailableBlocksLong() * stat.getBlockSizeLong();
-		} else {
-			availableSpace = (long) stat.getAvailableBlocks() * (long) stat.getBlockSize();
-		}
-		return availableSpace / SIZE_MB;
-	}
-
-	@SuppressWarnings("resource")
-	public boolean isCurrent(File file) {
-		String line = null;
-		try {
-			line = new BufferedReader(new FileReader(file)).readLine();
-		} catch (IOException e) {
-			Log.e("WTF", e.getMessage());
-		}
-		if (line == null) {
-			line = "-999";
-		}
-		return line.equals(STABLE_VER);
-	}
-
-	@SuppressLint("DefaultLocale")
-	public boolean getCPUArch() {
-		String arch = System.getProperty("os.arch");
-		return !arch.toLowerCase().matches(".*arm.*");
-	}
-
-}