Create extension for auto-assigning students to the students group

Review Request #7856 — Created Jan. 8, 2016 and discarded — Latest diff uploaded

Information

rb-extension-pack
master

Reviewers

A simple extension for auto-assigning students working on Review Board to
the "students" group.

I can imagine this maybe being useful for other projects as well, so I can
see this expanding out to allow multiple auto-assignments, but for now I've
just hard-coded the "students" group.

Created some test users and a "students" group. Entered the extension
configuration page and added some users in the comma-separated list to
auto-assign. Created review requests for the users in the list and saw
that they were correctly added to the "students" group. The review requests
from the other users were not.