WIP: Active Directory Dovecot configuration
Merge branch 'master' into b1747
NethServer::MailServer (getDovecotSharedPath): fixed ACL storage path of shared mailboxes. Refs #1739
NethServer::MailServer (getVirtualMailboxDomain): removed vmail.nh internal domain suffix. Refs #1844
Removed NethServer::MailServer::getVirtualMailboxDomain() method calls. Refs #1844
NethServer::MailServer (getMailboxes): removed obsolete function. Refs #1844
NethServer::MailServer (getMailboxAliases): Expand virtual addresses to a local account name  Mail forwards must be implemented through local(8) daemon. Refs #1844
/etc/postfix/aliases template: 30forwards fragment delivers messages to aliases defined by user's MailForward* props. Refs #1844
NethServer::MailServer (getMailboxForwards): fixed MailForwardKeepMessageCopy check logic. Refs #1844