Merge branch 'master' of git.ispconfig.org:ispconfig/ispconfig3

install/apps/metronome-init

...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

...ps/metronome_libs/mod_auth_external/mod_auth_external.lua

install/apps/metronome_libs/mod_discoitems.lua

...apps/metronome_libs/mod_webpresence/icons/status_away.png

...apps/metronome_libs/mod_webpresence/icons/status_chat.png

.../apps/metronome_libs/mod_webpresence/icons/status_dnd.png

...s/metronome_libs/mod_webpresence/icons/status_offline.png

...ps/metronome_libs/mod_webpresence/icons/status_online.png

...l/apps/metronome_libs/mod_webpresence/icons/status_xa.png

...l/apps/metronome_libs/mod_webpresence/mod_webpresence.lua

install/dist/conf/debian60.conf.php

install/dist/lib/debian60.lib.php

install/install.php

install/lib/installer_base.lib.php

install/sql/incremental/upd_dev_collection.sql

install/sql/ispconfig3.sql