* Port the following files from using MFC to wxWidgets instead:

 * brushprop.cpp
 * btedit.cpp
 * bteditdoc.cpp
 * bteditview.cpp
 * expandlimitsdlg.cpp
 * mainfrm.cpp
 * mapprefs.cpp
 * objectproperties.cpp
 * pasteprefs.cpp
 * playermap.cpp
 * tdview.cpp
 * textureprefs.cpp
 * textureview.cpp
 * wfview.cpp

* Port the following dialogs from using MFC to wxWidgets instead:

 * IDD_EDGEBRUSH         (brushprop.cpp)
 * IDD_EXPANSIONLIMITS   (expandlimitsdlg.cpp)
 * IDD_MAPPREFS          (mapprefs.cpp)
 * IDD_OBJECTPROPERTIES  (objectproperties.cpp)
 * IDD_PASTEPREFS        (pasteprefs.cpp)
 * IDD_TEXTUREPREFS      (textureprefs.cpp)

* Port the following files from using DirectX to OpenGL instead:

 * ddimage.cpp
 * directx.cpp
 * geometry.cpp

* For multiplayer editor, replace "export start","expand" and "mission" with "export game".
* Allow gateway editing in 3d view.
* Fix crash if you paint with an empty edge brush.
* Load data from game WZ zipfile.
* Save data to WZ zipfile.