Added update_item, create_item, create_child to split_draft.py
Cleaned up TODOs in test_mixed_modulestore.py
Unit test for auto-publish
LMS-11017
Added tests to test_mixed_modulestore.py for has_changes and added black_list to _auto_publish
Moved DIRECT_ONLY_CATEGORIES to draft_and_publish.py
Deleted test_split_draft_modulestore.py
Added _auto_publish to create course
Publish cleanups for update_version, source_version
Changed has_changes to use source_version
Removing mixed test that no longer makes sense in auto_publish world
Addressed TODOs in test_branch_setting
9a039e93ec