Reformats markdown problem templates avoid extra line breaks.
Merge pull request #3928 from edx/christina/custom-split-editor

Implement a custom editor for the split_module.
Annotation Tools: PR Fixes

- Fixed camel case for variable name
- Fixed indentation in imageannotation.html
- Changed all mentions of Instructor Username to Email
- Turned annotation_mode into phrase
- Fixed indentation in imageannotation.html
- Added comments in imageannotation.html

- Changing annotation_mode in OSDA
Fixes spelling of Michigan in template.
Revert "Fixes spelling of Michigan in template."

This reverts commit 9e9e69ace3ee4cb5b768b8942aad9ff1984fc841.
Fixes spelling of Michigan in template.
Add support for search spell corrections to Forums UX.

Co-authored-by: Brian Talbot <btalbot@edx.org>

JIRA: FOR-591
Merge pull request #3986 from edx/jsa/search-spell-correction

Add support for search spell corrections to Forums UX.
Merge pull request #3997 from edx/benmcmorran/template-text-formatting

Reformats markdown problem templates avoid extra line breaks.
Annotator Tools: OpaqueKeys update for Notes
Skip video cc test BLD-1115
Merge pull request #4013 from edx/zoldak/disable-cc-test

Skip video cc test BLD-1115
Annotation Tools: Added CommonAnnotatorMixin
Merge pull request #3965 from edx/db/django-babel-underscore

Extract i18n strings from *.underscore files using django-babel-underscore
Bugfix certificates request queue HTML flattening
Annotator Tool: Fixed delete bug and factored out settings

Removed print context
Merge pull request #2 from lduarte1991/lduarte-harvardx-pr3

Annotation Tools: Fix delete bug and factor out xmodule settings
Product stack documentation

DOC-448
fix nfsd in devstack
Merge pull request #3960 from edx/db/update-ddt

Update ddt to 0.8.0