The docs settings file needed an update for a new djangoapp that was
added. Long term we need to probably think more deeply about how we want
the LMS/CMS docs builds to work. Do we want to separate them, or make
it easier to have a django settings file that will work with both. For
now, we have a single settings file that is referenced for the docs
build so it needs to have all the installed apps from both.
d0140a25b9
