Added a JRuby 1.7.11 recipe.
Merge pull request #515 from nirvdrum/jruby-1.7.11

Added a JRuby 1.7.11 recipe.
1.9.3 builds with performance patches.
Build for 1.9.3-p385-perf.
Build for 1.9.3-p392-perf.
Build for 1.9.3-p429-perf.
Build for 1.9.3-p448-perf.
Build for 2.1.1-perf.
Build for 1.9.3-p484-perf.
Build for 1.9.3-p545-perf.