Studio support for creating and editing libraries (PR 6046)

cms/djangoapps/contentstore/utils.py

cms/djangoapps/contentstore/views/__init__.py

cms/djangoapps/contentstore/views/component.py

cms/djangoapps/contentstore/views/course.py

cms/djangoapps/contentstore/views/helpers.py

cms/djangoapps/contentstore/views/item.py

cms/djangoapps/contentstore/views/library.py

cms/djangoapps/contentstore/views/tests/test_course_index.py

cms/djangoapps/contentstore/views/tests/test_helpers.py

cms/djangoapps/contentstore/views/tests/test_item.py

cms/djangoapps/contentstore/views/tests/test_library.py

cms/envs/bok_choy.env.json

cms/envs/test.py

cms/static/js/factories/library.js

cms/static/js/index.js

cms/static/js/spec/views/pages/course_rerun_spec.js

cms/static/js/spec/views/pages/index_spec.js

cms/static/js/views/utils/create_course_utils.js

cms/static/js/views/utils/create_library_utils.js

cms/static/js/views/utils/view_utils.js