Test caching of courses in mixed maps
Merge pull request #5212 from cpennington/split/import-export-performance

Improve performance of split-mongo import/export performance
Wrap get_item inside bulk_operations internally, to cache query for active versions

[LMS-11402]
Merge pull request #5439 from edx/mixed_ms_coverage

Test caching of courses in mixed maps
Release notes for Insights
Merge pull request #5437 from edx/ahodges/doc/DOC1037

Release notes for Insights
Paver: pep8/pylint violations limit switch. Fail if limit is breached.

This adds the -l switch, wherein a violations limit is passed in. For
example:
  paver run_pep8 -l 700

Will fail if more than 700 violations are found.

By default, this limit is not enforced (i.e. if the -l switch
is not passed into the command, then a limit will not be put
into effect for that run)
Fixes and xref
Merge pull request #5446 from edx/ahodges/doc/xreffix

Fixes and xref
Allow changing of language preference from profile page
Merge pull request #5427 from edx/renzo/profile-page-preferred-language

Allow changing of language preference from profile page
Added default font to a  list of available fonts in text editor XModule
Added acceptance test scenario to test for existense of "Default" font and all tinyMCE built-in fonts
Updated AUTHORS
Fixed multiple JsInput's in problem.
TNL-269
Merge pull request #5330 from edx/waheed/tnl269-fix-multiple-jsinput

Fixed multiple JsInput's in problem.
Merge pull request #4930 from e-kolpakov/master

Fix for TNL-147
Merge pull request #5139 from edx/benp/enforce-pep8-pylint-threshold

Paver: fail if pylint/pep8 violations threshold is breached.
Tweak to old header styles to fix login button
Show cohorts on the new instructor dashboard

TNL-161

Remove placeholder text
LMS: revises membership UI layout on instructor dashboard
LMS: adds static cohort group management UI to the Instructor Dashboard