* 000000 - make frecency index a multi column index with typed, and visit_count?
* 000000 - forcibly call the "on idle" timer after migration, import, page removal, etc
* {{bug|412217}} – treat TRANSITION_DOWNLOAD like we treat TRANSITION_EMBED visits
'''Additional notes (need to clean these up, log spin off bugs, etc). These are mostly for dietrich so he knows what I've done and why and the known issues.'''