implement static tabs. rejigger .tar.gz import to do the re-namespacing as a post-processing step as we need to retain the original url_name during the import. Also, migrate the presentation tier to use module_render.py::get_module() to better unify HTML'ifying stuff

Merge branch 'feature/cale/cms-master' of github.com:MITx/mitx into feature/cdodge/import-course-info

Squelch some (but not all, yet) errors during template loading

typo fix

fixed multiple file picker bug; removed 'fakepath' from uploading file n...

replaced section name alert with a spinner

Feature/cale/cas save draft tweaks

tweaked saving mechanisms

Feature/cale/fixing tests

Feature/cdodge/import grading policy

adjust implemented according to code review feedback. Move all of the grading_policy retrieval into a from_xml() override method. Also move in some of the grading inheritance logic into course_module.py

Make LMS access depend on which course run the access is occurring in, so that permissions can be based on the course run, rather than the whole course

Merge branch 'feature/cale/cms-master' of github.com:MITx/mitx into feature/cdodge/import-grading-policy

implement importing of grading policy during import. This is stored in definition.data.grading_policy.

Switch to using staff group names that are only specified by org/course, rather than the full course_id

Conflicts:
	common/lib/capa/capa/responsetypes.py
	common/lib/xmodule/xmodule/js/src/html/display.coffee
	lms/envs/common.py

Feature/cas/tom/section details

changed save button to add user

trim section name strings to remove whitespace