Fixed missing return warning in test program source.
Fixed implicit declaration of SDL_Log() warning in joystick source for Android.
Fixed unused local variable warning in joystick source for Android.
Fixed missing @Override annotation warning in source for Android.
Fixed unused local variable warning in test program source.
Fixed access of command line arguments on Android in two test programs.
Updated paths in README for Android.
Fixed pointer from integer warning and bug if compiled without EGL.
Changed return -1 after SDL_SetError() to return SDL_SetError().