Refactored User Management. Adding and editing now occurs in a lightbox. Issue: #462 #380 #379 #378 #377
If user is not admin, show login link instead of user management page. Issue: #429
preventDefault on lightbox actions. Issue: #377
Remove click handlers from delete so they don't stack up on the confirmation button. Issue: #377
Merge pull request #468 from medic/user-management

User Management refactor