There is no imap module; refer to imaplib instead, since it exists.
Move the "See Also:" section in front of the sub-sections, for
consistency with other portions of the library reference.
This closes the library reference portion of SF bug #420216.
SourceForge doesn't choke on this batch :-)
I'm not entirely sure this is 100% correct. The patch changes an
\index{persistency} to \index{presistence}, and I don't know what \index{}
does. But it seems to do so persi--er, consistently, so I hope it isn't a
problem.