Log Message:
Update to Dovecot 1.0.3.  Some small fixes and one regression from 1.0.2:

	- deliver: v1.0.2's bounce fix caused message to be always saved to
	  INBOX even if Sieve script had discard, reject or redirect commands.
	- LDAP: auth_bind=yes and empty auth_bind_userdn leaked memory
	- ACL plugin: If user was given i (insert) right for a mailbox, but
	  not all s/t/w (seen, deleted, other flags) rights, COPY and APPEND
	  commands weren't supposed to allow saving those flags. This is
	  technically a security fix, but it's unlikely this caused problems
	  for anyone.
	- ACL plugin: i (insert) right didn't work unless user was also given
	  l (lookup) right.
	- Solaris: Fixed filesystem quota for autofs mounts.