Add ruby2.0.0 build in travis-ci
Merge pull request #42 from sanemat/feature/ruby-2-0-0

Add ruby2.0.0 build in travis-ci
Revert "Remove travis condition"

This reverts commit 51725473c72647a5001879e4aa2672f792970948.
Merge remote-tracking branch 'origin/master' into feature/debugger-travis
Do not use --deployment option in travis bundler