re-introduced exit(retval) hack as otherwise app wouldnt quit properly

jni/love/src/love.cpp

@@ -248,6 +248,10 @@ int main(int argc, char **argv)
 #endif // LOVE_LEGENDARY_UTF8_ARGV_HACK || LOVE_LEGENDARY_APP_ARGV_HACK
 	SDL_Quit();
 
+#ifdef __ANDROID__
+	exit(retval);
+#endif
+
 	return retval;
 }