* Remove m2m relation between credit course and credit providers.
* Separate eligibility and provider APIs into different modules.
* Add API call for retrieving a user's eligibilities.
* Cache credit course list.
* Style the dashboard purchase button.
* Display a link for the credit provider on the dashboard.
* Add analytics events for clicks on the purchase button.
* Expose more credit models to Django admin and add search functionality.

removed JavaScript function specific to the upsell toggle
removed bok choy test
Removed all referenced to toggleExpandMessage()

TNL-1516

- reversing the positions of the sidebar and course listing
- html for new social icons (not currently wired up)
- new actions dropdown for unenrollment and email settings
- partial reorganization of dashboard.scss styles
- text fix for unenrollment
- added missing endif, p/hgroup closures
- reverted la.course-item
- removed extra operator
- fixed broken bok choy test

Add client-side analytics event for LinkedIn Add to Profile button click.

Add management command for generating certs for testing.

Update styling of the certificate messages.

Make HTML comments Mako comments

Make donations configurable

Added donation button to dashboard

Generalize merchant defined data for payment processor