Merge pull request #11 from ernstki/master

Close Role endpoint issues and bump API to 0.4
Merge pull request #13 from ernstki/master

Fixed invalid JSON for roles collection sample response
Merge pull request #14 from ernstki/master

And again with the roles endpoint. Extraneous commas this time.
Merge branch 'master' of github.com:nmoadev/TeamMachineAPI
Fixed several copy/paste-induced typos

Closes #12.