Change license to modified zlib-License

LICENSE.txt

@@ -0,0 +1,20 @@
+Copyright (c) 2015 BlockMen <blockmen2015@gmail.com>
+
+
+This software is provided 'as-is', without any express or implied warranty. In no
+event will the authors be held liable for any damages arising from the use of
+this software.
+
+Permission is granted to anyone to use this software for any purpose, including
+commercial applications, and to alter it and redistribute it freely, subject to the
+following restrictions:
+
+
+1. The origin of this software must not be misrepresented; you must not
+claim that you wrote the original software. If you use this software in a
+product, an acknowledgment in the product documentation is required.
+
+2. Altered source versions must be plainly marked as such, and must not
+be misrepresented as being the original software.
+
+3. This notice may not be removed or altered from any source distribution.

README.txt

@@ -38,9 +38,12 @@ steel ingot  stick
 
 
 
-License of source code, textures and mesh model: WTFPL
+License of source code: 
-------------------------------------------------------
+-----------------------
-(c) Copyright BlockMen 2014 - 2015
+(c) Copyright BlockMen (2014-2015), modified zlib-License
+
+see "LICENSE.txt" for details.
+
 
 
 Licenses of sounds
@@ -61,7 +64,12 @@ following sound is created by Yuval (freesound.org)
 following sound is created by SmartWentCody (freesound.org)
 - creatures_shears.ogg,  CC-BY 3.0
 
-All other sounds (c) Copyright BlockMen (2014), CC-BY 3.0
+
+License of all other Media (textures, meshes/models, sounds):
+-------------------------------------------------------------
+(c) Copyright BlockMen (2014-2015), CC BY-SA 3.0
+
+
 
 Changelog:
 ----------