We add 'courserun_key' (aka "course_id" though that's technically a
misnomer) as an optional parameter to the /event endpoint url. If it
is not present, it will still be parsed out of the url, if the url is
of the right format.

Additionally, Logger.log() in js adds this parameter to its /event
call, pulling it from the $$course_id global.

This provides opportunity for MFEs to (separately) provide the key
without concern about url parsing.

TNL-7752

We add 'courserun_key' (aka "course_id" though that's technically a
misnomer) as an optional parameter to the /event endpoint url. If it
is not present, it will still be parsed out of the url, if the url is
of the right format.

Additionally, Logger.log() in js adds this parameter to its /event
call, pulling it from the $$course_id global.

This provides opportunity for MFEs to (separately) provide the key
without concern about url parsing.

TNL-7752

* Generate common/djangoapps import shims for LMS
* Generate common/djangoapps import shims for Studio
* Stop appending project root to sys.path
* Stop appending common/djangoapps to sys.path
* Import from common.djangoapps.course_action_state instead of course_action_state
* Import from common.djangoapps.course_modes instead of course_modes
* Import from common.djangoapps.database_fixups instead of database_fixups
* Import from common.djangoapps.edxmako instead of edxmako
* Import from common.djangoapps.entitlements instead of entitlements
* Import from common.djangoapps.pipline_mako instead of pipeline_mako
* Import from common.djangoapps.static_replace instead of static_replace
* Import from common.djangoapps.student instead of student
* Import from common.djangoapps.terrain instead of terrain
* Import from common.djangoapps.third_party_auth instead of third_party_auth
* Import from common.djangoapps.track in...

This will remove imports from __future__ that are no longer needed.

https://docs.python.org/3.5/library/2to3.html#2to3fixer-future

https://docs.python.org/3.5/library/2to3.html#2to3fixer-asserts

* INCR-124: Run python-modernize on common/djangoapps/track/tests

* isort

PLAT-776