Fixed bug where the back button can be pressed multiple times, and screens will be backed up that many times, cleaned up code a bit
added google play services lib, added sample code for ads, fixed where widgets was still clickable during transition screen
Merge branch 'master' of https://github.com/ayrten-cofounder/Ayrten-Scrots

Conflicts:
	android/AndroidManifest.xml
	android/res/values/strings.xml
	desktop/highscore_normal_mode.txt