Solved bug where GameRenderer updates last shot square in aimGrid, when trying to shoot and it's not your turn - solves issue #28
Moved ships in Placement to better position
Added comments to various classes
Added logic for determine if game is over and who's the winner and loser
Visualized winner and loser, disabled shooting when game is over and additional bugfix
Merge branch 'develop' of https://github.com/bipshark/TDA367 into feature/enemy_visuals
Refactores hit-miss-logic. It now uses a HashMap with Coordinates and a boolean
Added help methods
Merge branch 'develop' of https://github.com/bipshark/TDA367 into feature/enemy_visuals

Conflicts:
	desktop/src/main/java/edu/chalmers/sankoss/java/models/GameModel.java
Made all the enemy's shoots show on the players screeen.