release-ulmo
- Add test content library XML. - Ensure that only a course import is saved to the draft branch and then published. A content library has only a single 'library' branch. - Add a fields parameter to the create_library call so the call has the correct number of parameters. - Add tests which import content libraries using different test methods and with different branch settings. - Add test which imports a content library and then exports it. - Use XBlock module version that supports XML-serialized String of None. - Add re-import of content library and equality comparison to test. - Allow get_items to be called on LibraryLocators.