Dovecot upgrade from 2.0.9 to 2.0.11. Please increase the PORTREVISION of the dovecot2-pigeonhole in the same time.

Changes for 2.0.10:
	* LMTP: For user+detail@domain deliveries, the +detail is again written
	  to Delivered-To: header.
	* Skip auth penalty checks from IPs in login_trusted_networks.

	+ Added import_environment setting.
	+ Added submission_host setting to send mails via SMTP instead of
	  via sendmail binary.
	+ Added doveadm acl get/set/delete commands for ACL manipulation,
	  similar to how IMAP ACL extension works.
	+ Added doveadm acl debug command to help debug and fix problems
	  with why shared mailboxes aren't working as expected.
	- IMAP: Fixed hangs with COMPRESS extension
	- IMAP: Fixed a hang when trying to COPY to a nonexistent mailbox. 
	- IMAP: Fixed hang/crash with SEARCHRES + pipelining $.
	- IMAP: Fixed assert-crash if IDLE+DONE is sent in same TCP packet. 
	- LMTP: Fixed sending multiple messages in a session.
	- doveadm: Fixed giving parameters to mail commands. 
	- doveadm import: Settings weren't correctly used for the
	  import storage.
	- dsync: Fixed somewhat random failures with saving messages to
	  remote dsync.
	- v2.0.9: Config reload didn't notify running processes with
	  shutdown_clients=no, so they could have kept serving new clients
	  with old settings.
Changes for 2.0.11:
	* dotlock_use_excl setting's default was accidentally "no" in all
	  v2.0.x releases, instead of "yes" as in v1.1 and v1.2. Changed it
	  back to "yes".

	- v2.0.10: LDAP support was broken
	- v2.0.10: dsyncing to remote often hanged (timed out in 15 mins)

Fix: Patch attached with submission follows: