Fixed missing disposes
Removed obsolete editor code.
Added a render window in the editor UI
Added a render window in the editor UI (part 2)
Merge branch 'master' of https://github.com/FloodProject/flood into 28FEB13_merge_upstream

Conflicts:
	inc/Editor/EventManager.h
	src/EditorRuntime/Editor.cpp
	src/EditorRuntime/EventManager.cpp
	src/EditorRuntime/Extensions/Project/ProjectPlugin.cpp
	src/EditorRuntime/Extensions/Property/PropertyPage.cpp
	src/EditorRuntime/Extensions/Terrain/TerrainPage.cpp
	src/EditorRuntime/Preferences.cpp
	src/EditorRuntime/Widgets/wxImageComboBox.cpp