Updated bundled imaplib2 to 2.35:

 - Fix for Gmail sending a BYE response after reading >100 messages
   in a session.

 - Includes fix for GitHub#15: patch was accepted upstream.

Signed-off-by: Eygene Ryabinkin <rea@codelabs.ru>
Updated bundled imaplib2 to 2.36

2.36 it includes support for SSL version override that was integrated
into our code before, no other changes.

Signed-off-by: Eygene Ryabinkin <rea@codelabs.ru>