adding in gray versions of social icons for use in new email template. Using new name to ensure old links and existing emails using older templates still stay active
Move FieldDataCache assert to check both get and get_or_create
Upgrade CodeMirror to 3.21.0 (with accessibility changes from
http://bgrins.github.io/codemirror-accessible/)
LMS-1802
adjusted color of russian social network image to be a lighter gray
Add logging to embargo middleware
Add map to problem_check event with descriptions of student answers

The map contains a human readable description of the answer if
necessary. It is useful for problem like multiple choice, when the
response of the student is replaced by a moniker. For example "choice_0"
instead of the full text.

Fixes: AN-587
Remove assert stmt from i18n validate script
Increases precision of percentages shown in 'Total' bar on the progress page.

The percentages shown currently can be confusing. For example, if the true weight
of a category is 0.76925% and the student scores 100% in it, they will see '0.8%
out of a possible 1.0%'. Increasing the precision to 2 decimal places changes it
to '0.77% of a possible 0.77%'.

LMS-2205
Removed all Push mode information

We should only support Pull mode

stud-1332
Edits from review

stud-1332
Import BrokenPromise
Merge pull request #2721 from rocha/rocha/add-answer-values

Add map to problem_check event with descriptions of student answers
Merge pull request #2760 from edx/marco/bulk-email/images

adding in gray versions of social icons for use in new email template. U...
Update translations (autogenerated message)
Merge pull request #2790 from edx/sarina/030314-language-update

Update translations (autogenerated message)
Merge pull request #2789 from edx/zoldak/fix-ora-test

Import BrokenPromise
Merge pull request #2779 from edx/sarina/embargo-logging

Add logging to embargo middleware
bug fix for HTML xmodule styling which caused first line of text to be cut off. STUD-1380
Merge pull request #2794 from edx/marco/bug-fix/html-xmodule

bug fix for HTML xmodule styling which caused first line of text to be c...
Merge pull request #2784 from edx/usman/lms2205-progress-page-inconsistency

Increases precision of percentages shown in 'Total' bar on progress page