Fix Django Wiki Links Issue

EDUCATOR-1655

add video duration to events

A new favicon for Open edX

Add oauth_provider to Studio INSTALLED_APPS

Move datadog/monitoring startup to AppConfig ready.

Fixed enterprise tagline styling.

ENT-749

Course Week Highlights accessor

Move bookmarks/course_overviews startup to AppConfig ready.

Add cryptography package to sandbox environment

update edx-enterprise to version 0.53.10

move settings validation out of startup.py

Fix polls 404 on disabled completion.

CMS urls cleanup for Django 1.11

This avoids premature registration of django checks which could break
django 1.11 startup.

This also creates a new app common_initialization in order to provide a
place to run initialization code common to both the LMS and CMS.

set a custom course_id metric on enrollment

Calling runtime.handle('progress', ...) was causing a 404 error due to
the runtime handler.  It should be okay for xblocks to submit a
completion or progress event; they just shouldn't have it treated
specially.

EDUCATOR-1642

Allow escaping out of Studio CourseOutlineXBlockModals

EDUCATOR-1409

Import Issue.

Mailing management command cleanup for Django 1.11

Remove microsite configuration from LMS startup.py.

Move edxmako startup to AppConfig::ready.

add success component on successful form submission

Merge release back to master

Searching by course run key no longer raises an exception.