Add IDE switch to CMake options, Add charset.png to dist

src/nostalgia/core/CMakeLists.txt

@@ -1,13 +1,13 @@
 cmake_minimum_required(VERSION 2.8.11)
 
-if(WOMBAT_BUILD_TYPE STREQUAL "GBA")
+if(NOSTALGIA_BUILD_TYPE STREQUAL "GBA")
 	enable_language(C ASM)
 	set(
 		CPP
 			gba/gfx.cpp
 			gba/media.cpp
 	)
-elseif(WOMBAT_BUILD_TYPE STREQUAL "Native")
+elseif(NOSTALGIA_BUILD_TYPE STREQUAL "Native")
 	set(CMAKE_INCLUDE_CURRENT_DIR ON)
 	set(CMAKE_AUTOMOC ON)
 
@@ -23,7 +23,7 @@ add_library(
 		core.cpp
 )
 
-if(WOMBAT_BUILD_TYPE STREQUAL "Native")
+if(NOSTALGIA_BUILD_TYPE STREQUAL "Native")
 	add_subdirectory(studio)
 endif()