Changed SimplePlayer into HumanPlayer
Merge branch 'master' into Change-Player-Classes
Renamned ComputerPlayer to LousyComputerPlayer
Changed old ComputerPlayer objects used into LousyComputerPlayer
Added interface ComputerPlayer
Changed getMove to public due to interface limited to public methods
Added immutable to java doc for classes SimpleBoard and SimpleNode
Corrected spelling misstake
Update SimpleNode.java

Added class comment with immutable inside, and yes it did steal it right away from your SimpleBoard Daniel, sorry :3 but it was so good!
Merge pull request #27 from ragnhildkarlsson/Change-Player-Classes

Change player classes