first version of the class members list
added the view for promoting the user
added user status, nonworking resend invite buttons
working invite resend view
added /course/ to non anonymous urls (auth)
permission checking in promote student view
removed unnecessary next_url form field
small fixes
added tests for promote student view
removed unnecessary form_invalid views
tests for resend invite view
added member list test and fixtures
fix for course information instantiation
added link to the class members page to the menu
Merge pull request #19 from appsembler/feature/29-class-members-page

#29 - class members page