- Oops, incomplete commit from the last one:
- If a given Maildir folder is new, remove the associated local status
cache file, if any. That way, there will not be any chance of
propogating hordes of deletes and adds based on old status data.
Backed out check for . in account names for now. Will put it back in
when we have a consensus on what exactly to do. Doubt that anyone has
a foldername that would conflict with Blinkenlights anyway.