use to instantiate loc_mapper
test loc_mapper injection into split modulestore

initial commit for a mixed module store which can interoperate with both XML and Mongo module stores

Seems like the Edit/QA links in LMS are triggered by a ENABLE_LMS_MIGRATION feature flag. So when running as mongo-backed, set that to False

DraftModuleStore was originally designed as a mixin, but never used that
way, and with the upcoming changes to use the versioned module store,
never will be. This changes removes a circular dependency between
mongo.py and draft.py.

Make django use_tz

Start linting envs files, add task to only pylint errors, and move pylintrc file to the correct location

Conflicts:
	lms/envs/cms/acceptance.py

Make the lms running alongside the CAS in dev point to the same contentstore, and server up static content