- honor alias_domain.active (see mail from Daniel Reichelt in postfixadmin-devel)
- fix query for maildir in virtual_mailbox_maps - the maildir field already
contains the domain (exact layout depends on the $CONF settings), so there's
no need to prepend it again
git-svn-id: https://svn.code.sf.net/p/postfixadmin/code/trunk@620 a1433add-5e2c-0410-b055-b7f2511e0802