Test against Ruby 1.9.3/2.0.0/2.1/2.2
Test against Ruby 1.9.3/2.0.0/2.1/2.2

gussan/pronto,mvz/pronto,prontolabs/pronto,HaiTo/pronto,jhass/pronto,aergonaut/pronto,treble37/pronto,mmozuras/pronto,Zauberstuhl/pronto