Security commands
User management
The command cmd=users provides user management. It is possible to add/remove/delete users online.
- cmd=users action=list : list all the authorized users.

- cmd=users action=add username=xx jabberid=yy@jabber group=zz : add a user xx identified by jabberid yy into group zz.

- cmd=users action=remove id=xx : remove user with id=xx.

- cmd=users action=modify username=xx newjabberid=yy newgroup=zz : modify a user by providing a new jabberid and a new group.