Merge hotfix release into master

Release candidate

Hotfix for Jan 13, 2017

Revert "Merge pull request #14324 from edx/efischer/revertins"

Upgraded to edx-organizations 0.4.2

Added username and user_id in opt out email csv.

Merge pull request #14341 from edx/release-candidate

This version includes updated help text for the Organization logo field.

ECOM-6862

Fixes submit button enablement on save/reset

This reverts commit c7d2d601, reversing
changes made to fb2173f4.

TNL-5619: removes enable/disable all button methods to save button state and disable active, modifies tests for new functions

Merge Release candidate to Release

Store failed subsection grade calculations

TNL-6250

Release

Hide previous next buttons in sequence nav from screen reader

Remove warnings about WIP API.

log video id and status along with message

generate sequence-specific titles server-side

[courseware] generate sequence-specific titles server-side (AC-695)

[courseware] generate sequence-specific titles server-side (AC-695)

case for empty subsections [AC-695]

move title logic into courseware context method [AC-695]

pep8

coffeescript -> js

js mistake

jslint

refactor sequence title generation slightly

missed a line

line too long

python is not javascript

ugh js

ugh js part 2

Sequence navs arrow keyboard support

Fix for bulk_email target selection

Update the year in the copyright

Use codejail with 15 threads

Merge release-candidate to release

Datetime is used to make sure we never need to make a change like this again.

Bulk Email for course modes

Fixed Course handouts rejects deletion of all text

Allow codejail threads TNL-6291

Hackathon XV project

Update translations (autogenerated message)

Revert #14225 hide_after_due for self-paced courses

This reverts commit 8b8cf5f9, reversing
changes made to 2716ffbf.