fixed conflict between Annotator and internationalitation

i18n Sequence XModule

pep8/pylint cleanup on symmath/formula.py

Ora page object retries even if rubric doesn't load

Do not translate checkbox values in html files

Anton/store video progress

Student logins to edx, plays video, selects position, closes
browser, opens video, position is restored.

BLD-385

Add a view for the field type Dict in Studio.

Change bok-choy coverage XML filename

Refactor stub implementation of LTI Provider. BLD-601. 

Fixed TOC and copyright

Move tests related to views files into views/tests.

Finish wiki i18n

unit tests to handle duplicate user registration attempts

Don't internationalize strings we use for enrollment.

Keyboard events and ARIA markup added to speed control

MixedModulestore wraps most getters, update_item, delete_item

Remove tabs.

LMS-2218

Keyboard events and ARIA markup added to speed control. Replaced anonymous event handlers by named functions. Menu stays open on mouseleave when a speed entry has focus. In that case, the menu can be closed by clicking anywhere outside of it. [BLD-402, BLD-363]

We use pybabel to extract strings from third-party apps, put them on
Transifex, then merge them into django.po.

[LMS-1681]

Refactor student views

Add a second fake translation language

Add Greek language translations