Merge pull request #3 from KB50-G1/develop

Getting the new stuff
Merge pull request #8 from KB50-G1/develop

Getting up to date.
Merge pull request #10 from KB50-G1/develop

Update more.
Made AI (still has some TODOs)
Merge remote-tracking branch 'origin/develop' into feature_game_activity_and_ai

Conflicts:
	app/src/main/java/com/frisodenijs/tictactoe/Game/AIPlayer.java
Added AI (not yet tested and missing fork)
Merge pull request #16 from KB50-G1/develop

Pulling latest develop
Finished AI, needs testing
Merge pull request #17 from KB50-G1/feature_game_activity_and_ai

AI finished (requires testing)