Updated StatController documentation

Finished adding documentation to all the methods in StatController not
associated with an inner class.
Fixed patch change issue

I realized that my code assumed the patch would always be of the form
#.## (e.g. 3.15), but patch 4.1 made me realize this is not the case.
The code now reflects that the patch number might be either #.# or #.##.
Additionally some documentation has been added to the MatchCellRenderer