Bok-Choy CMS Video Editor Tests
Provide course outline template with start date
Studio: adding rendering/styling of course start date on outline view
Added shared browser topic

To include in all guides
Studio: revising alignment of in-context edit buttons in outline view
Fix: inadvertent scroll when loading the instructor's extensions tab

(The div with id "view-extensions" conflicts with the tab JS which sets location.hash to "view-x" in order to track the current tab)
Unit tests for bugs in IDDE API, including LMS-6563
Fix: an individual extended due date must not precede the normal due date LMS-6563
Fix: API allowed an individual due date extension on units with no due date
Fix: 500 response if indiv. due date deleted after normal due date was deleted
Fix: Display error when attempting to reset nonexistent due date extension
Add myself to AUTHORS, update changelog
Merge pull request #4496 from edx/ammar/bok-choy-cms-video-editor-tests

Bok-Choy CMS Video Editor Tests
Truncated markup can be displayed in forums user profile view
FOR-581
Merge pull request #4203 from mlkwaqas/waqas/for581-truncated-markup-on-user-profile

Truncated markup can be displayed in forums user profile view
pep8 improvements on bok-choy tests.
pep8 improvement on bok-choy page class.
path_to_location now returns 404 on orphaned items. Resolves LMS-9661.
Edits - Alison
Added browsers to data, developers, install, release notes