Fixed a bug that prevented the restarting of services when the install is finished.

- Installer recognizes 5.0 and lenny/sid as suppoertde debian release

- added a daily cronjob for stats creation in the installer.
- Fixed a bug in the spamfilter white / blacklist forms (thanks to satommy for reporting this)
- fixed ssl cert path in vhost templates/web_domain_ssl.htm
- fixed a bug in the apache plugin which prevented the copying of the standard error and index files.

- enhanced the documentation