Fix embargo middleware with tests

bok-choy: Fix flakiness in date-picker steps under studio tests

LMS: resolves focus background-color issue of 3rd party login buttons

fixes help copy for annotation settings

These were failing on Solano builds because the save button was clicked
before the datepicker was done its work. (The EmptyPromise was still satisfied
because the input field value had been updated, but the datepicker widget
caused issues about 3/4 of the time.)

Add event tracking endpoint to be called by segment.io

Fixes git export to support repositories with dots in their name and cleans export repo

Corrected NameError for invalid variable

Remove some uneeded translation strings in git_export

Cache inherited settings outside of structure

Fix discussion error popup on http request abort

LMS-11363

CodeMirror should use monospace fonts.

Remove unused analytics JS left over by 3rd party auth changes

Quality cleanup

AWS settings for XBlocks to have filesystem-like storage

Test cohort selector in NewPostView

Update translations (autogenerated message)

Upgrades to latest pyfs to support auth not through environment variables

TNL-197

show upload progress on import course view

Strengthened warnings to remember passphrase. Fixes DOC-860.

@stroilova, @srpearce, please take a look. Fixes DOC-860.

STUD-2017

XBlock argument passing support backport from SDK

This ensures that additional exports of the content are the
same the first.

Upgrading gunicorn to latest