Added repeat-test capability to state machine validator
#107 Fixed inabaility to find root state on new turn in some factored games
Added assert when illegal move selected
#107 Fix to state normalization for factored games
Also some (commeted out) debugging support for another (non-reproducible so far) problem
#115 Fixed illegal move selecion in Chinook resulting from corrupted factor mask
Extra assertions
#116 Fixed assertion failuer in sweeping unreferenced nodes on new turn.  Also fixed a potential small edge leak in the same method
Fixed bug with non-terminality semantics of unexpanded nodes in some transpositional games