Travis CI

I would like to ask for accepting this pull request and setup travis CI. It will help spot issues with this gem and easy people contributing to it.

There are more instructions here: http://about.travis-ci.org/docs/user/getting-started/ but the "heavy work" is already done, you just have to "signup" and switch the trigger.

This will also spot 2 failing specs, which I will try to merge/fix from what people who forked have done.