Hide self-register link if self registration is off

The /register link is only useful if self registration is turned on, so
hide it otherwise to avoid confusion.

CANVAS-233
New section policy: Use default Canvas section if term != 1137, else use existing criteria
Add term start and end date to course csv

For calendar courses, it will use the start and end date of the selected term
Merge pull request #109 from va7map/canvas233

Hide self-register link if self registration is off (CANVAS-233)
Merge pull request #124 from ronvs/new-section-policy-creation

Update course form controller to implement new section policy
Merge pull request #125 from ronvs/add-start-end-dates-to-courses

Add start end dates to courses