merge from upstream and begin using subscriptions for queue
It doesn't seem to be working yet, not sure why but I think it has something to do with the instantiation of the Concurrent.broadcast
The enroll page now repopulates correctly on the fly.  There seems to be an issue with actually enrolling all of the accounts, so that is next.
Fix the enrolling thing.  looks like there is an error in the deletion
Fix the deletion of queues
Merge pull request #4 from ajohnson-echo360/add_subscription

attempt to add subscription feeds to enroll page