Improved cmake build script for Android: - Error out when Ant or android can't be found - Attempt to find the NDK toolchain binaries on Windows and Linux instead of assuming Linux - Use find_program instead of find_path to find some binaries - ANDROID_SDK now refers to the Android SDK base directory - Fixed detection of android.bat on Windows - Output of the android tool is now shown so that success/failure is visible

if(WIN32 AND NOT UNIX)
	file(GLOB DLLs *.dll)
	file(GLOB ICOs *.ico)
	
	install(FILES
		${DLLs}
		${ICOs}
		DESTINATION bin)
endif(WIN32 AND NOT UNIX)