Clean up translated strings in registration page, dashboard, and track selection flow
Restore copy originally present on the registration page
Importable python_lib.zip assets

Lots of plumbing to allow an asset named python_lib.zip to be imported
by jailed Python code.

This function can find the "python_lib.zip" asset, and is passed down
through ModuleSystem and LoncapaSystem so that capa problems have access
to the zipfile.
Merge pull request #5129 from edx/ned/python-zip-assets

Python zip file importable from an asset
move to s3fs and handle one time url
Merge pull request #4898 from edx/danielli/recommender_pyfs

RecommenderXBlock with pyfs, better UX, and modification of logging
Hiding Insights link for non-staff users
Merge pull request #5188 from edx/insights-staff-only

Hiding Insights link for non-staff users
Added note about video URLs hidden by default
Merge pull request #5284 from edx/sylvia/docs/DOC-866

Sylvia/docs/doc 866
Merge pull request #5248 from edx/renzo/cleanup-translated-strings

Clean up translated strings in registration page, dashboard, and track selection flow
Use split to test views
Fix acceptance tests to work w/ split
11300