Add Ruby 2.1.0 to Travis config
Add Ruby 2.1.0 to Travis config

tranvictor/enumerize,hungrything/enumerize,monfresh/enumerize,victor95pc/enumerize,quarkstudio/enumerize,maurogeorge/enumerize,tanraya/enumerize,shaundunne/enumerize,brainspec/enumerize