Icalendar export for timetable.
New timetable with new look and link to ICS downloads
Merge branch 'ical' into new_timetable

Conflicts:
	app/controllers/timetables_controller.rb
Fixes
Merge branch 'new_timetable' of /home/khughes/old_disk/Code/leap into new_timetable

Conflicts:
	app/models/person.rb
New search page
Merge branch 'new_timetable' into more_new_stuff

Conflicts:
	app/assets/stylesheets/cloud.css.less
Improve new search view with "skip to courses" button and title
Timetable improvements including add event button - not yet working
MIS searching
Tidy up the new timetable controls
Adding and showing tt_activities to the new timetable look/feel
Split the sidebar into a bunch of partials
New course page with tabs for photo list or new fangled grade tracker table
Proof-of-concept grade track box with (dead) progress bar
More bits on the course overview
Filter course list by status
Filter works on the table view as well as the photo list view
POC progress table
Exporting and tidying