Merge pull request #6 from therealklanni/master

Adds command to list users with role. Cleans up regex.
Remove non-capturing groups. Clean up command output.
Merge pull request #7 from hubot-scripts/remove-non-capturing

Remove non-capturing group regex for legibility.
Revert ADMIN_ONLY flag, as an auth script shouldn't allow turning off authentication. [#4]
Merge pull request #8 from hubot-scripts/revert-admin-only

Revert ADMIN_ONLY flag.
Add some tests with hubot-mock-adapter.
Install grunt-cli on travis run.
Merge pull request #9 from hubot-scripts/add-tests

Add some tests.
Add travis badge.