Merge pull request #26 from KB50-G1/develop

Updating my branch
Changed null to new int[0] in ai return statements
Merge remote-tracking branch 'origin/develop' into feature_game_activity_and_ai

Conflicts:
	app/src/main/java/com/frisodenijs/tictactoe/MainMenuActivity.java
Added Dutch strings
AI nearly working

The check winning methods still have issues
AI Fixed
Merge branch 'feature_game_activity_and_ai' into develop
Merge branch 'develop' into feature_game_activity_and_ai
Merge remote-tracking branch 'origin/feature_game_activity_and_ai' into develop

Conflicts:
	app/src/main/java/com/frisodenijs/tictactoe/Game/Game.java
	app/src/main/java/com/frisodenijs/tictactoe/Game/RandomPlayer.java
	app/src/main/java/com/frisodenijs/tictactoe/MainMenuActivity.java