Add ruby 2.0.0 to travis
Add ruby 2.0.0 to travis

rgroux/grit,isabanin/grit,gitcafe-dev/grit,rgroux/grit,flycutter/grit,isabanin/grit,abicky/grit,flycutter/grit,gitcafe-dev/grit,gitlabhq/grit,gitlabhq/grit