refactored tests in courseware to draw course info from mongo instead of xmlmodulestore
Refactoring the code in tests.py to remove unnecessary dependencies on the XML Modulestore.
Merge branch 'master' into jnater/playground

Conflicts:
	common/lib/xmodule/xmodule/modulestore/tests/factories.py
	lms/djangoapps/courseware/tests/tests.py
Refactored some of the classes in tests.py to not unnecessarily depend on the XML modulestore.

Conflicts:
	lms/djangoapps/courseware/tests/test_navigation.py
	lms/djangoapps/courseware/tests/test_view_authentication.py
	lms/djangoapps/courseware/tests/tests.py
Removed a unnecessary imports from mongo_login_helpers.py and repeated code from tests.py.
Addressed pull request feedback.
Merge branch 'master' into jnater/courseware_tests

Conflicts:
	lms/djangoapps/open_ended_grading/tests.py
In the middle of addressing pull request comments. This is a safety commit in case I have to revert some changes I'm about to make.
Removed the use of random.choice()
Removed run_wrapped() and replaced its functionality with patch.dict():
Updated a doc string.
Removed some unused functions.
Merge branch 'master' into jnater/courseware_tests
Removed some unnecessary imports.
Remove obsolete and distracting SCSS file
Explicitly test the creation and deletion of every component type

The testing of all settings/text editing have been done elsewhere and should be done when testing a new component
Addressed pull request feedback
Script for making all instructors content creators.
Handle the case of script being terminated before the user was deleted.
Add doc strings.