Channel, Subscription, Video, SearchFind, ExploredChannel and BlockedChannel (and LIVE_OR_UPCOMING)
leave app/models.py for app/catalog/models.py; app.tables registers them. The User↔Subscription
relationship names its other side as a type only. No schema change.
"Full history: done / requested" counted every subscribed channel whose
back-catalog was complete in the numerator - also the ones another user asked
for, or short enough to finish on their own - against only the channels this
user requested, so the Stats page read "342/329". The numerator now counts the
requested channels that are done; "channels without full history yet" still
counts every subscribed one.
peter