Fix polls 404 on disabled completion.

CMS urls cleanup for Django 1.11

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

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.

- Remove usage of django.urls.patterns
- Change urls tuples to lists
- Make all string view names callables

add option to disable capturing stderr in pytest

PLAT-1779 Fix CMS INSTALLED_APPS/model imports mismatch

A11Y Update to wiki edit field.

syncdb cleanup

Make the Section Highlights in outline a button

Edit highlights modal copy

bump enterprise version from 0.53.7 to 0.53.9

Point to the proper AppConfig in INSTALLED_APPS for course_modes.

LEARNER-2653 Added Untranslated strings files to Repo

Update translations

celery task to update sailthru purchase record

translations to transifex. This will help edx-platform
automated jenkins translation job understand when to push
translations to transifex.

Support multiple dynamic pacing experiences

ENT-673: Hide braces when ENTERPRISE_TAGLINE is not set.