XMPP User and domain changes and Metronome SQL Auth scripts

...pps/metronome_libs/mod_auth_external/authenticate_isp.php

...apps/metronome_libs/mod_auth_external/authenticate_isp.sh

install/apps/metronome_libs/mod_auth_external/db_auth.php

...all/apps/metronome_libs/mod_auth_external/db_conf.inc.php

install/apps/metronome_libs/mod_auth_external/db_isuser.php

install/apps/metronome_libs/mod_auth_external/isuser_isp.php

install/lib/installer_base.lib.php

install/sql/incremental/upd_0081.sql

install/sql/ispconfig3.sql

interface/web/mail/form/xmpp_domain.tform.php

interface/web/mail/form/xmpp_user.tform.php

interface/web/mail/lib/lang/en_xmpp_domain.lng

interface/web/mail/lib/lang/en_xmpp_user.lng

interface/web/mail/list/xmpp_user.list.php

interface/web/mail/templates/xmpp_domain_edit.htm

interface/web/mail/templates/xmpp_user_edit.htm

interface/web/mail/xmpp_domain_edit.php

interface/web/mail/xmpp_user_del.php

interface/web/mail/xmpp_user_edit.php

server/conf/metronome_conf_host.master