Bug fixes:
#312854: Fix a hang while renaming folders twice for exchange
(Matthew Barnes)
#331099: Fix calculation of array index to avoid negative values
(Matthew Barnes)
#344728: Add headers for Sun Kerberos v5 (Irene Huang)
#352284: Do not fetch the message from server - instead use the
header information to calculate the expiry period. (Veerapuram
Varadhan)
#437751: Fix time display in Windows (Andreas Köhler)
#443705: Fixed build break due to incorrect macro (Loïc Minier)
#443958: Add support for help string. (Sebastien Tandel)
#447414: Security bugfix - negative index of an array (Philip Van
Hoof)
#447753, #447749: Fix a memory leak (Matthew Barnes)
#448589: Add support for automake 1.6 (Tobias Mueller)
Other Contributors:
Check entire IMAP4 summary to remove non-existent messages (Jeffrey
Stedfast)
Fetches "Sent Items" in all folders. Also, fixed some bugs in moving
mails across folders. (Sankar P)
