Add comment voting to discussion API

WIP: Limit application of CCX overrides to enabled courses and providers

compile sass in quiet mode unless debug=True

Revert "Update bok-choy version and move to base.txt"

Fix forum response display issue with long labels on action buttons

Lower pylint threshold to 7100

Add text_search parameter to discussion API

The thread list endpoint now accepts the text_search parameter and also
includes a text_search_rewrite field in its responses.

ECOM-1494 deleting models from database through new migrations.

Update studio templates to remove fieldset and legend tags

Remove extra lean modal trigger

Fix modal css to be hidden immediately

Display error message on ORA 1 components in units Studio.

Update bok-choy version and move to base.txt

TNL-2304

Fix typo in Instructor dashboard UI text

ECOM-1683 removing regen-cert code.

update reverification block version to fix error for 'skip_reverifica…

ECOM-1738

Responsive LMS cleanup

Modernize the dashboard button styles

Web Certificates: Addressing a11y feedback

Before the leanModal content css was applied after the js class
was added to the body element. This causes leanModals to
display for a split second before being hidden. This fix removes
the need for the explicit css rule for static pages preview.

Merge hotfix-2015-06-16 back to master

Ensure that is_hidden does not affect equality checks.