Updated .rvmrc to use newest (as of this date) JRuby, and RVM version.
Added project .jrubyrc file preloaded with JRuby options.
Options are for experimenting with ways to increase JRuby exec speeds.
Removed dependency on Yard and RedCarpet gems for doc building.
RedCarpet is a Cext gem which JRuby disables by default. Goal is
to completely remove, and ban any any/all Cext gems to keep JRuby
native.