Added 'remotipart' gem to support Ajax file uploads.
CSS improvements.
Added support for submit-on-immediate-change behavior in forms with .form-search class.
Course offering/enrollment controller fixes.
Fixes to course enrollments views.
Separated User full_name into first_name and last_name and other minor improvements; added user impersonation.
Added sort order on course enrollments relationship.
Added CSV roster upload controller.
Added nicer user-facing error pages.