upgraded to the new junit
upgraded gridTest to junit 4 and fixed the line unittests
added tests for get{Vertical,Horizontal,Diagonal}Lines methods
added gitignore file
GameTest now uses junit4
Game now throws runtime exceptions when invoked the wrong way
ported the apptest class to junit4
added null check to doPlace in MockPlayer
Added tests for gameover and placing when it is not your turn
moved playertest over to junit4
moved squareTest over to junit4
Lines can no longer be constructed from an empty array of squares
added isOwnable method to line to check if this a line could
potentially be owned
added unittests for line