The defaults used to be rerandomize=always, showanswer=closed. This is
preserved for capa problems being imported from XML. However, for
courses, and for problems created in Studio, the default has been
changed to never/finished, to match the previous defaults used by
Studio.

Instead, we use XModule field default values when creating an empty
XModule. Driven by this use case, we also allow for XModules to be
created in memory without being persisted to the database at all. This
necessitates a change to the Modulestore api, replacing clone_item with
create_draft and save_xmodule.

This standardizes the XModule field default values to be the same as the
values that are presented by studio when a component is added to a
course.

DraftModuleStore was originally designed as a mixin, but never used that
way, and with the upcoming changes to use the versioned module store,
never will be. This changes removes a circular dependency between
mongo.py and draft.py.

Studio Sass Mixin/Extend Re-Org

Studio: Revises Course Updates Nav Visual Display Issue

Fix section release acceptance test failure.

Studio internationalization

[STUD-431] Seems like the Edit/QA links in LMS are triggered by a ENABLE_LMS_MIGRAT...

Add management command to Studio for exporting all courses; useful for periodic backups of course content in Studio

[STUD-406] Fix/cdodge/unescape quote strings

change serialize_field to check for type. If value is a string, simply return that, otherwise do a json.dumps

vagrant: Always mount `node_modules` folder after Vagrant NFS mount

Added documentation to new acceptance test features and techniques

Bugfix for stanford shib

Fixed a spelling mistake. LMS-605

Jonahstanley/refactor global to world

Seems like the Edit/QA links in LMS are triggered by a ENABLE_LMS_MIGRATION feature flag. So when running as mongo-backed, set that to False

Tidy up argument parsing in release email script

Add a 'string literal' serialization method and use it in the lambda function mapping table when the value to xml serialize is of basestring type. Also a couple of drive-by pep8 fixes.

Fix alt text for the login page: LMS-600