This line is what's causing this warning message to appear on OS X builds at the moment:

```
Warning! PATH is not properly set up, '/Users/travis/.rvm/gems/ruby-2.0.0-p247/bin' is not at first place,
         usually this is caused by shell initialization files - check them for 'PATH=...' entries,
         it might also help to re-add RVM to your dotfiles: 'rvm get stable --auto-dotfiles',
         to fix temporarily in this shell session run: 'rvm use ruby-2.0.0-p247'.
```