[Dovecot] v2.0.5 released

[Timo Sirainen]

http://dovecot.org/releases/2.0/dovecot-2.0.5.tar.gz
http://dovecot.org/releases/2.0/dovecot-2.0.5.tar.gz.sig

See the "ACL handling bugs" message for more details about the ACL
merging bug.

	* acl: Fixed the logic of merging multiple ACL entries. Now it works as
	  documented, while previously it could have done slightly different
	  things depending on the order of the entries.
	* virtual: Allow opening virtual mailboxes that refer to non-existing
	  mailboxes. It seems that the benefits of this outweigh the lack of
	  error message when typoing a mailbox name.

	+ Added some disk I/O optimizations to Maildir and index code. They're
	  especially helpful with short-lived connections like POP3.
	+ pop3: Added pop3_fast_size_lookups setting.
	- doveconf sometimes failed with complaining about missing ssl_key
	  setting, causing e.g. dovecot-lda to fail.
	- lda: If there's an error in configuration, doveconf didn't exit with
	  EX_TEMPFAIL as it should have.
	- sdbox: Fixed memory leak when copying messages with hard links. 
	- zlib + sdbox combination didn't work
	- zlib: Fixed several crashes, which mainly showed up with mbox.
	- quota: Don't crash if user has quota disabled, but plugin loaded.
	- doveadm fetch uid was actually returning sequence, not uid.
	- v2.0.4's subscription listing ignored (and logged a warning about)
	  subscriptions=no namespaces' entries in some configurations.
	  (So listing shared mailboxes' subscriptions could have been broken.)
	- acl: Fixed crashing when sometimes listing shared mailboxes via
	  dict proxy.