Added assertions to hunt rare bug.
Merge branch 'orego8' of github.com:Orego/Orego into orego8

Conflicts:
	src/edu/lclark/orego/mcts/RaveNode.java
Collate now only used completed games when computing average game length.
Collate report format improved.
Collate should now really only count moves in completed games.
Created edu.lclark.orego.experiment.Significance.
Orego can now resign.
Hopefully made collate and broadcast separate files for different years, months, days.
Merge branch 'orego8' into MultipleCollateFolders
Added more assertions to catch bug where RaveNode.recordPlayout would overflow its playedPoints set.
Thread bug in RaveNode hopefully fixed.
Merge branch 'orego8' into MultipleCollateFolders
Broadcast and Collate now (hopefully) produce and draw from nested directories.
Started adding Lgrf settings to command line
Fixed merge conflicts
Added the ability to toggle lgrf2 from the command line.