Initial fix for PostTagHistory.

Doesn't seem to be used anymore, though.
Add space after comment.
Nuke aws storage system. Not used anymore.

--HG--
extra : amend_source : c4faa3651b11a67a2942caadb23a9324a98161ca
Move frame url generation to image stores.
Remove accidentally added pry.
local2, the new (and will be the only) file storage.