Also includes RequireJS changes.

Fixes bugs:
STUD-755, STUD-152, STUD-700, STUD-699

Remove unused variables; some changes to match existing BDD spec for
drag/drop (expand-on-hover timeout and dropping with mouse outside of
element); bugfix for section expand; some code cleanup; update and
re-enable acceptance test.

Cleaned up files with muliline imports

Cleaned up files that do not use these imports

Misread comment

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.

% to format
css_find().click() to its actual function
A few name changes as well as step changes
Removal of drag testing
A refactoring of login and create user.  Login will no longer create the specified user

* Missing docstring
* Redefining name from outer scope

manipulation