Log Message:
Catch up with Dovecot 1.2 RC's.

v1.2.rc5 2009-06-04 Timo Sirainen <tss@iki.fi>

	* auth_cache_negative_ttl is now used also for password mismatches
	  (currently only with plaintext authentication mechanisms).

	+ Added support for EXTERNAL SASL mechanism.
	+ FETCH X-SAVEDATE can now be used to get messages' save timestamps
	+ deliver_log_format: %s is now in UTF8
	- If message body started with a space, some operations could have
	  assert-crashed.
	- Fixed using LDAP support as a plugin
	- Fixes to virtual mailboxes.

v1.2.rc4 2009-05-17 Timo Sirainen <tss@iki.fi>

	* If /dev/arandom exists, use it instead of /dev/urandom (OpenBSD).
	* When logging to a file, the lines now start with a timestamp instead
	  of "dovecot: " prefix.

	+ IMAP: When multiple commands are pipelined, try harder to combine
	  their mailbox syncing together. For example with Maildir pipelining
	  STORE 1:* +FLAGS \Deleted and EXPUNGE commands the files won't
	  be unnecessarily rename()d before being unlink()ed.
	+ imap-proxy: Send backend's CAPABILITY if it's different from what
	  was sent to client before.
	+ IMAP: struct mail now keeps track of all kinds of statistics, such
	  as number of open()s, stat()s, bytes read, etc. These fields could
	  be exported by some kind of a statistics plugin (not included yet).
	+ IMAP: SEARCH command now dynamically figures out how to run about
	  0.20 .. 0.25 seconds before seeing if there's other work to do.
	  This makes the SEARCH performance much better.
	- Fixes to shared mailbox handling.
	- Fixes to virtual mailboxes.
	- THREAD command could have crashed.
	- Fixes to expire-tool.
	- mbox: Don't break if From_-line is preceded by CRLF (instead of LF).
	- dict process wasn't restarted after SIGHUP was sent to master.

v1.2.rc3 2009-04-16 Timo Sirainen <tss@iki.fi>

	* IMAP proxy no longer simply forwards tagged reply from
	  remote authentication command. It's now done only if the remote
	  server sent a [resp-code], otherwise all failure strings are
	  converted to Dovecot's "Authentication failed." to make sure that
	  if remote isn't using Dovecot it won't reveal user's existence.

	+ Quota roots can now specify which namespace's quota they're
	  tracking. This is probably the most useful for giving public
	  namespaces a quota.
	+ Added imap_idle_notify_interval setting.
	- Fixes to shared mailbox handling
	- Fixes to virtual mailboxes
	- Fixed compiling with some FreeBSD and NetBSD versions
	- THREAD REFS still might have returned one (0) at the beginning.
	- deliver wasn't using mail_access_groups setting.
	- Fixed some error handling in maildir and index code.

v1.2.rc2 2009-04-03  Timo Sirainen <tss@iki.fi>

	- rquota.x file was missing from rc1 distribution, causing compiling
	  to fail.

v1.2.rc1 2009-04-03  Timo Sirainen <tss@iki.fi>

	* When creating files or directories to mailboxes, Dovecot now uses
	  the mailbox directory's permissions and GID for them. Previous
	  versions simply used 0600 mode always. For backwards compatibility
	  dovecot-shared file's permissions still override these with Maildir.
	* SQL dictionary (quota) configuration file is different than in v1.1.
	  See doc/dovecot-dict-sql-example.conf for the new format.
	* deliver -m: Mailbox name is now assumed to be in UTF-8 format,
	  not modified-UTF7. Stephan Bosch's new Sieve implementation also
	  assumes UTF-8 format in fileinto parameters.

	+ Full support for shared mailboxes and IMAP ACL extension.
	  The code is mainly from Sascha Wilde and Bernhard Herzog.
	+ IMAP: Added support for extensions: CONDSTORE, QRESYNC, ESEARCH,
	  ESORT, SEARCHRES, WITHIN, ID and CONTEXT=SEARCH.
	+ SEARCH supports INTHREAD search key, but the rest of the INTHREAD
	  draft isn't implemented yet so it's not advertised in capability.
	+ THREAD REFS algorithm where threads are sorted by their latest
	  message instead of the thread root message. There is also no base
	  subject merging.
	+ IMAP: Implemented imap-response-codes draft.
	+ Thread indexes for optimizing IMAP THREAD command and INTHREAD
	  search key.
	+ Added userdb checkpassword (by Sascha Wilde)
	+ Virtual mailboxes: http://wiki.dovecot.org/Plugins/Virtual
	+ Autocreate plugin: http://wiki.dovecot.org/Plugins/Autocreate
	+ Listescape plugin: http://wiki.dovecot.org/Plugins/Listescape