This change fixes the warning message for locales
Fixes #5 - Now works on Vagrant 1.4.3

To be honest, I'm not super sure how these changes fix the issue? I just took what was the current head of `vagrant-omnibus` and tweaked it to Puppet. The main culprit is probably the double `call(env)` in install puppet that is removed by this commit. But, it works, so yay! :+1:
Merge pull request #9 from patcon/5-gsub_error

Fixes #5 - Now works on Vagrant 1.4.3