releasing core 3.3.7
Added script to upgrade to 3.4
avoid error if file does not exist
added UI to upgrade to 3.4
error handling when webadmin is down

and update every second
Stop modules to avoid conflicts in listening ports with haproxy
avoid activated save changes button after upgrade
improved message
stop modules before dist-upgrading
migrate samba ldb files
copy the whole private directory
force confdef during pending configure
fixed typo
make sure directory exists
recreate ldb hardlinks
remove test repos
safer way to restore hardlinks
added reboot warning
leave samba running after copying data
force proper start of samba