Stub for scoreboards.
Delete cache.xml
Logged in-out working.
Scoreboards working.
Google play services are now a lot more stable.
Merged branches.

Conflicts:
	app/src/main/java/com/snakeremake/views/BaseLevelView.java
Merged branches.

Conflicts:
	app/src/main/java/com/snakeremake/views/BaseLevelView.java
Merge pull request #2 from GuilleDF/play-services

Play services