added www.-Subdomain option

Added Helper scripts to setup ispconfig in a openvz enviroment. Thanks to Carlos Alocen for providing these scripts.

Bug FS#267 - mail filter not hidden for client 

http://bugtracker.ispconfig.org/index.php?do=details&task_id=295&project=3

http://bugtracker.ispconfig.org/index.php?do=details&task_id=296&project=3

Had some problems with SSI, so i also changed the Options-Part

It is now possible to add "navigation-text" without links (actions) to the left navigations-side of the template (needed by the monitor module to add the server-dropdown)

Fixing the way some User Interface text was used. For the quota on a mailbox I added 'in MB' so that the user knows what units the quota is in.

The mail box quota wasn't being run on mailbox creation. I had previously only fixed it when the mailbox is changed.

They both work fine now.

http://bugtracker.ispconfig.org/index.php?do=details&task_id=272&project=3

This is suppose to fix the bug where maildrop and maildirmake doesn't rebuild the /maildirsize file. 

Added new table monitor_data for the core-module monitor.

Now a client can view e-mail filters created by admin, but the client can't edit them. The client can submit a change, but it isn't input in the database, nor is the client told that the changes aren't made.

http://bugtracker.ispconfig.org/index.php?do=details&task_id=267&string=&project=3&search_name=&type[0]=1&sev[0]=&pri[0]=&due[0]=&reported[0]=&cat[0]=&status[0]=open&percent[0]=&opened=&dev=&closed=&duedatefrom=&duedateto=&changedfrom=&changedto=&openedfrom=&openedto=&closedfrom=&closedto=

This is to try to fix the bug where if a filter is created by an admin, then the user with the e-mail account can't see the filter. 

http://bugtracker.ispconfig.org/index.php?do=details&task_id=267&string=&project=3&search_name=&type[0]=1&sev[0]=&pri[0]=&due[0]=&reported[0]=&cat[0]=&status[0]=open&percent[0]=&opened=&dev=&closed=&duedatefrom=&duedateto=&changedfrom=&changedto=&openedfrom=&openedto=&closedfrom=&closedto=