Merge pull request #28 from seanclerkin/master

If the Ruby binary isn't available, compile it
added gem source to rubygems
added gem source to rubygems
added gem source to rubygems
re-added vanilla split :)
Merge pull request #30 from seanclerkin/master

Move to Ruby 2.1.5 and remove RVM
Merge remote-tracking branch 'upstream/master'
Took out removal of existing gem sources
Took out removal of existing gem sources
Merge pull request #31 from mikesmithmsm/master

Took out removal of existing gem sources