Use combined files on Android for faster build

GpApp/Android.mk

@@ -15,75 +15,7 @@ LOCAL_CFLAGS := -DGP_DEBUG_CONFIG=0 -DGP_ZLIB_BUILTIN=1
 
 # Add your application source files here...
 LOCAL_SRC_FILES := \
-	About.cpp	\
-	AnimCursor.cpp	\
-	AppleEvents.cpp	\
-	Banner.cpp	\
-	ColorUtils.cpp	\
-	Coordinates.cpp	\
-	DialogUtils.cpp	\
-	DynamicMaps.cpp	\
-	Dynamics.cpp	\
-	Dynamics2.cpp	\
-	Dynamics3.cpp	\
-	Environ.cpp	\
-	Events.cpp	\
-	FileError.cpp	\
-	GameOver.cpp	\
-	GpAppInterface.cpp	\
-	Grease.cpp	\
-	HighScores.cpp	\
-	House.cpp	\
-	HouseInfo.cpp	\
-	HouseIO.cpp	\
-	HouseLegal.cpp	\
-	Input.cpp	\
-	Interactions.cpp	\
-	InterfaceInit.cpp	\
-	Link.cpp	\
-	Main.cpp	\
-	MainMenuUI.cpp	\
-	MainWindow.cpp	\
-	Map.cpp	\
-	Marquee.cpp	\
-	Menu.cpp	\
-	Modes.cpp	\
-	Music.cpp	\
-	ObjectAdd.cpp	\
-	ObjectDraw.cpp	\
-	ObjectDraw2.cpp	\
-	ObjectDrawAll.cpp	\
-	ObjectEdit.cpp	\
-	ObjectInfo.cpp	\
-	ObjectRects.cpp	\
-	Objects.cpp	\
-	Play.cpp	\
-	Player.cpp	\
-	Prefs.cpp	\
-	RectUtils.cpp	\
-	Render.cpp	\
-	Room.cpp	\
-	RoomGraphics.cpp	\
-	RoomInfo.cpp	\
-	RubberBands.cpp	\
-	SavedGames.cpp	\
-	Scoreboard.cpp	\
-	Scrap.cpp	\
-	SelectHouse.cpp	\
-	Settings.cpp	\
-	Sound.cpp	\
-	SoundSync_Cpp11.cpp	\
-	SourceExport.cpp	\
-	StringUtils.cpp	\
-	StructuresInit.cpp	\
-	StructuresInit2.cpp	\
-	Tools.cpp	\
-	Transit.cpp	\
-	Transitions.cpp	\
-	Triggers.cpp	\
-	Trip.cpp	\
-	Utilities.cpp	\
-	WindowUtils.cpp
+	GpApp_Combined.cpp
 
 LOCAL_STATIC_LIBRARIES := PortabilityLayer