ZP-158

- added: -h and --help to display help from cli
- added: show options default, active-only, unknown-only and custom timeout for terminated connections
- changed: number of rows available is now better used on busy systems
- changed: show more columns of username and less of device id


git-svn-id: https://z-push.org/svn/z-push/trunk@1369 b7dd7b3b-3a3c-0410-9da9-bee62a6cc5b5