adding the callback_plugin for track the time of each task

Update footer logo URL to point to themed logo

Be able to override configuration repo and edx-platform repo.

Course Discovery default db is setup for docker.

Need to install Python-MySQL pre-reqs

Skip tags fail when tags don't exist, which in this case is most ever…

Restart based on the flower user, not a hardcoded service name

for compatibility with comprehensive theming

Override for docker in the docker overrides.

Sandboxes don't have a 'db' host like docker will.  They need to use 'localhost' for mysql.

Django 1.8 doesn't need to syncdb

E0d/refactor utils

Truly Atomic Requests

https://docs.djangoproject.com/en/1.8/ref/django-admin/#syncdb

Rotate mongodb.log and serverStatus.log independently

Make all the requests atomic not just one of them.

Make request atomic.

We were ending up with gaps in our logs on disk (everything was in
splunk, but missing in /edx/var/log/mongo).  When this ran previously
and roatated serverStatus.log but mongodb.log was less than 1M and
didn't need to rotate, the killall -USR1 to mongo would cause the log to
be reopened and written over.