in favor of moving this to __init__.py and breaking each subscription class out into a file in the near future.

if no breakup, at least move this right above TumblrSubscription and don't have anything else but Subscriptions below it, including no DailyWakeup stuff below it.  Also demarcate with a row of #######, it's important and we're guaranteed to forget it and be mystified.

Also, could be auto-populated by all children descending from a class or some shit.