[PATCH 0/6] Readd idle again

[Ethan Glasser-Camp]

Hi guys,

Please find the followign six patches to readd IDLE, which are the
same as yesterday but with minor changes and clarifications to respond
to Nicholas's criticism.  I guess if I were really slick I'd only send
updated patches, but I'm not that slick :) Anyone want to provide
pointers?

Changes:

- remove unneeded time import (patch 3)
- warn if IDLE is not supported by server (patch 4)
- rename variables so as to clarify imaplib2's "error" callback (patch 6)
- put the comment warning that we can't do a NOOP on a bad connection
  before the if checking for a bad connection for clarity (patch 6)
- document shortcomings of IDLE and mark it as EXPERIMENTAL
  in offlineimap.conf (patch 1)

Once again, I hope you can apply this :)

Ethan