v0.5.2

Changelog

773e715 Add check
ed9c25a Add description
2350feb Add support for using service accounts
0270b2f Allow role configuration
5b6df31 Fix for default provider path on mac, and link to hashicorp docs
8e3ea5b Merge pull request #1 from npalm/doc-provider-dir
d97d3b3 Merge pull request #12 from npalm/master
24279ae Merge pull request #13 from philips-software/feature/service-account