OSX support

[gabrielmoreira]

Hi @nickcanz! Do you intend to send a pull request with your improvements?

The changes you made were enough to run on OSX?

[nickcanz]

Hi @gabrielmoreira, yes I opened up #2 to get craftman to work on OSX. I didn't run through all the features, but it should be enough to at least have "beta" OSX support.

[gabrielmoreira]

@nickcanz great job, thank you!

Just do craftman --upgrade and test.