correct assign-workcells url
Added more functionality for assigning workcells to users
Added assignee to workcell (AOI) and created property to access
fixed url
added functionality to assign workcells
added 'post' method support for AssignWorkcellsView
added send_assignment_email function
added call to send_assignment email
removed assign_workcell link for now
Merge branch 'develop' of ssh://github.com/ngageoint/geoq into develop