Add MRI 1.9.2 and 2.1.0 to .travis.yml
Add MRI 1.9.2 and 2.1.0 to .travis.yml
conorsch/tugboat,mtbottle/tugboat,beni55/tugboat,pearkes/tugboat,Ferada/tugboat,noma4i/tugboat,haihappen/tugboat,haihappen/tugboat,conorsch/tugboat,Ferada/tugboat,petems/tugboat,noma4i/tugboat,beni55/tugboat