NOJIRA Remove bad file commit from PR 2773
Merge pull request #2775 from raydavis/raywip

NOJIRA Remove bad file commit from PR 2773
CLC-3967 Add site memberships maintainer to handle both incremental & batch mode
CLC-4030 Add instructor to new course site via API rather than SIS import
Also removes unnecessary restriction on section ID formats.
CLC-3967 Simplify API to use more flexible enrollments proxy
CLC-3967 Import enrollments in course provisioning