RBY/GSC Stat Reduction Errors

Example: Converts 2/7 (.2857) to 28/100 (.2800). The latter is the
correct value for Gens 1 and 2.

Also adds the CappedStat messages to RBY.
Merge pull request #1260 from Fuzzysqurl/rbystat

RBY/GSC Stat Reduction Errors