TD Training and AI performance updates

Minor changes to the way TD trains. New AI performance utility. TD
training now counts the number of games it has played.
Merge branch 'master' of https://github.com/CruorVolt/PTTT

Conflicts:
	polar/game/styles/DifferencePlayStyle.java
	polar/game/styles/GreedyPlayStyle.java
	polar/game/styles/HumanPlayStyle.java
	polar/game/styles/ManualPlayStyle.java
	polar/game/styles/RandomPlayStyle.java
	polar/game/styles/SearchPlayStyle.java
merge cleanup
Merge branch 'master' of https://github.com/CruorVolt/PTTT