Remove redundant custom Validator facade
Allow empty permissions in Permissions constructor
[otf:255]
Allow array as param to Permissions::isAtLeast()
[otf: 255]
Pull init back from setUpBeforeClass() to setUp()
Refactor some controller auth handling
Add RolesController tests for proposed perms in excess of client
Add Permissions::isSameAs() method
Update/delete role triggers affected user update