- Fix Android compilation issues

- Added a "cachesize" option (not available from the menu, but can be manually edited in players/options.txt, for example cachesize=200 means 200MB of cache). The hardcoded cache on windows/linux is 20MB, which is not enough for Hi Res cards (60 is better, 200 is great)

projects/mtg/Android/jni/Android.mk

@@ -133,7 +133,6 @@ LOCAL_SRC_FILES := $(SDL_PATH)/src/main/android/SDL_android_main.cpp \
         $(MTG_PATH)/src/WFont.cpp \
         $(MTG_PATH)/src/WGui.cpp \
         $(MTG_PATH)/src/WResourceManager.cpp \
-        $(MTG_PATH)/src/NetworkPlayer.cpp \
         $(JGE_PATH)/src/SDLmain.cpp \
         $(JGE_PATH)/src/Encoding.cpp \
         $(JGE_PATH)/src/JAnimator.cpp \