Removing importants from heading styles

Remove unused profile name.

Migrate correctly from scratch also

The profile name requires escaping when displayed. Proactively removing since it is not being used. Also discovered some dead code.

Delete hinter manager.

TNL-3429: implement display_name_with_default for studio text sanitation

TNL-4140 – Configure code jail for Studio

TNL-4195

Invalid display courseware through the LTI iframe in IE 10+

Convert tests for adding advanced problem components from lettuce to bok-choy

Fixed edx-proctoring requirement

Use markup HTML helper with Text

Unfortunately, instrospection.get_table_description runs
select * from course_overview_courseoverview, which of course
does not exist while django is calculating initial migrations, causing
this to fail.  Additionally, sqlite does not support information_schema,
but does not do a select * from the table.

Lift the main part of mysql's get_table_description up to the migration itself
and just inspect it directly.  Continue to call the API for sqlite.

Incremented edx-proctoring version for 0.12.12 release

Fix content library export with empty problems.

Going head with the bump to Django version 1.8.10 - hopefully, 1.8.11 will show up soon and we'll be able to remove this monkeypatch.

TNL-4160

Fix minor typographical errors in the platform API documentation

Mark a flaky test, SOL-1654

Mark two tests flaky. TNL-4190 TNL-4191

- Ensure that only a course import is saved to the draft branch and then
published. A content library has only a single 'library' branch.
- Add a fields parameter to the create_library call so the call has the
correct number of parameters.
- Add tests which import content libraries using different test methods
and with different branch settings.
- Add test which imports a content library and then exports it.
- Use XBlock module version that supports XML-serialized String of None.
- Add re-import of content library and equality comparison to test.
- Allow get_items to be called on LibraryLocators.

Update translations (autogenerated message)

Despite db_index=True, Django didn't generate an index

Adding the -n option to the Sphinx build invocation

This should not be needed, we specify ATOMIC_REQUESTS on each DB

student_module_id is the primary way into this table, not having an
index is disastrous with real data.

Adding the -n option to the Sphinx build invocation so that WARNINGs will be treated as ERRORs. This will cause builds to fail if Sphinx cannot import modules for its autoclass directives. Currently, they fail silently and leave gaps in the published HTML where docstring content should have been.

Release ⇒ master

Added Flaky decorator to Chrome flaky tests