A new last logged in, last created script has been added to check which
users we have to disable.
- checks in group sshallow
- if last login older than 60days, remove account from ssh group
- if we have account create date, check if never logged in and older
than 30 days, remove account from ssh group
Both dates can be set separate
Update create script to add create date in Y-m-d (%F) format as
comment to the passwd file
Also add user to sshallow group (group always exists, is created on
server creation)