Adding CLI arguments to groupMembers example
Cleaning up comments
Added operations for creating and deleting categories.
Refactoring for Guzzle3
Removing broken 'extends' from GroupAdd, GroupRemove operations
Adding dependency on ctrl/discourse-sso
Using array literals in Discourse
Adding SyncSso operation
Merge branch 'feature/sso' into develop

* feature/sso:
  Adding SyncSso operation
  Using array literals in Discourse
  Adding dependency on ctrl/discourse-sso
Adding VERSION constant to Discourse