Always include origin for target_branch in diff quality

TE-2731 Upgrade to pytest-cov 2.6.0

Fix python and quality target branches

clean up where access checks happen

Conditionalize track selection based on all FBE settings

enable searching for course in FBE admin

INCR-31 INCR-38 Remove constraint on pysrt and run make upgrade

Add proctortrack library

Add a test of the FBE Upgrade banner

Refactor verified_upgrade_link_is_valid to directly call Ecom service

REV-656

BB-674 - Change Django's configuration precedence in manage.py

Add revenue field to completed order event

Add email in course enrollment event

Additionally update code documentation to clarify expected behavior around
dynamic pacing deadlines.

REVO-69

Bump Django version to 1.11.18

Faster "npm install" without progress bar

REV-655: Fix upgrade deadline bug

Fix context name for bokchoy/quality master pipelines

Update version of edx-proctoring-proctortrack

Merge pull request #19528 from edx/testeng/bokchoy_auto_cache_update_c5723d94dfc978ce45a036693d6264f52b4e71be

Bokchoy db cache update

Allow merge builds for python/lettuce pipelines