added caching to roles. got rid of transitions for opening conversation (for now). added min height to conversations. fixed logging activity on notificationst to say name rather than object.
added model method for creating mentor in controller. changed wording of invitation email. got rid of excess controller action in mentors controller.
changed showIfPermission directive to accommodate any role passed. added view, controller etc for create mentor modal. added button to admin page to invite mentors (no method defined yet. added role query to main admin view. added styling to make modal visible.
got rid of bootstrap modal. adding caching to mentors service. made jl modal more variable (to accomodate create mentor modal). got rid of angular alert calls because they won't dismiss at the moment.