Use new best practices.

FEDX-24

Make base.html Mako template safe by default by:
1. Add page-level default of html escaping
2. Fix escaping of all variables in base.html
3. Fix escaping of all dependent underscore templates
Also includes additional best practices for certificates and
textbooks JavaScript/Underscore in order to complete that work.

TNL-3425

- added the new field review_rules for software secure
- added a new tab name "Additional Settings" for the proctored/timed exams

Also adds improved styling for course pacing settings, and unit tests
around query counts for self-paced courses.

ECOM-2650

ECOM-2443

SOL-1157 --  moving buttons from top to bottom and also using the standard save/cancel buttons in signatory edit view.
and update the bokchoy test

* Automatically create user partitions on course publish for each ICRV checkpoint.
* Disable partitions for ICRV checkpoints that have been deleted.
* Skip partitions that have been disabled when checking access.
* Add verification access control UI to visibility settings.
* Add verification access control UI to sequential and vertical settings.
* Add partition scheme for verification partition groups.
* Cache information used by verification partition scheme and invalidate the cache on update.
* Add location parameter to UserPartition so the partition scheme can find the associated checkpoint.
* Refactor GroupConfiguration to allow multiple user partitions.
* Add special messaging to ICRV for students in the honor track.

Authors: Zubair Arbi, Awais Qureshi, Aamir Khan, Will Daly

* asadiqbal08/SOL-1058: Add edx-organizations to certificate web view
  * Support organization logo asset management
  * Remove organization fields from Studio certificate configuration model

* SOL-981 pull request feedback fixes

Delete button should not be clickable if in use by a unit.