Don Mitchell
639658913d
Refactor split migrator
LMS-2936
Also, a bunch of ancillary cleanups.
Conflicts:
common/lib/xmodule/xmodule/modulestore/tests/test_publish.py
Conflicts:
cms/djangoapps/contentstore/management/commands/migrate_to_split.py
cms/djangoapps/contentstore/management/commands/tests/test_rollback_split_course.py
common/lib/xmodule/xmodule/modulestore/__init__.py
common/lib/xmodule/xmodule/modulestore/mixed.py
common/lib/xmodule/xmodule/modulestore/mongo/draft.py
common/lib/xmodule/xmodule/modulestore/split_migrator.py
common/lib/xmodule/xmodule/modulestore/split_mongo/split.py
common/lib/xmodule/xmodule/modulestore/tests/test_split_migrator.py
common/lib/xmodule/xmodule/modulestore/tests/test_split_w_old_mongo.py