Merge branch 'some_build_things' into export_event_calendar
Merge branch 'some_build_things' into export_event_calendar
Revert "Remove icalendar dep."

This reverts commit e57749ffc90f686de19c0d85fd9f8b1cb9814e56.
Add files for calendar export.
Merge branch 'some_build_things' into export_event_calendar
Export an icalendar from Course, with tests.
Add calendar view and url.
Add a link for the event calendar to the template. Still requires styling.
Merge branch 'add_travis' into export_event_calendar
Merge branch 'master' of https://github.com/orzubalsky/tradeschool into export_event_calendar
Fix course view url builder.
Move calendar export block to the base template.
Rename event-calendar to branch-calendar to be more consistent with naming.
Add class calendar link to confirmation page.
Add link to confirmation page.
Merge branch 'export_class_calendar_on_confirmation' into export_event_calendar
Merge pull request #146 from dnephin/export_event_calendar

Export event calendar to icalendar format