Improve test coverage for course groups

change PaidCourseRegistration.contained_in_order

Monkey patch 'django.utils.translation'

Remove i18n from ux reference templates

ECOM-113: Already verified page sometimes displays the incorrect price

now handles cases where the order has both a PaidCourseRegistration
and a CertificateItem

Update devstack settings to use new CyberSource API

be sure to just use the Open edX footer.html when we're running a white ...

Pep8 and Pylint fixes to the student tests

A better check for the existence of matlabinput element.

Updating LMS Login button to line up SASS with Drupal Login button

Bok-Choy Video Transcript Tests Batch3

Fixed typo on student id verification.

Implement bulk operations on the split modulestore.

LMS-11249

Release date change & fixed two broken links

Modify Django's translation library, such that the gettext family of
functions return an empty string when attempting to translate a
falsey value. This overrides the default behavior [0]:
> It is convention with GNU gettext to include meta-data as the
> translation for the empty string.

This patch provides a holistic solution to replace the current piecemeal
approach [1][2].

Affected Methods:
    - gettext
    - ugettext

[0] https://docs.python.org/2.7/library/gettext.html#the-gnutranslations-class
[1] bad803e4
[2] https://github.com/edx/edx-platform/pull/4653

LMS-11185 Split implementation of revert_to_published