Changes to make the course short description editable in cms

Conditional module changes to support Locator/Location conversion.

Sylvia/documentation/tim 137

Add gene editor; update protein builder and molecule editor

STUD-1027

First draft of documentation for Image Modal tool

Add Catalan (Valencia)

splash-screen: Add ability to redirect to a splash screen URL

i18n points possible display LMS-2201

Update i18n translator documentation

Update Esperanto (dummy) translation files

Addition of 3 TinyMCE plugins to toolbar

Fixed missing polyfill buttons and adjusted layout of number input 
UX-381

UX-381

Checks for the presence of a cookie with specific values when activated,
and redirect the user to a configurable URL when it is not found, or not
with an accepted value.

To be used to display a splash screen to users upon the first visit.
It's the responsability of the splash page at the redirected URL to set
the proper cookie value before sending users back to the LMS.

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.