- Implemented: FS#3077 - Add gender field for client

- Implemented:  FS#1312 - disabling a whole client
    -> see bugtracker comments for more details
- Fixed:  FS#3060 - Subdomain vhost ip update on web domain update
- Implemented:  FS#3078 - Change client template system: delete specific template from limits 
    -> including link in billing module to link specific assigned templates
- Fixed:  FS#3058 - Error in mail quota calculation when changing tab in mailboxe configuration
    -> quota limit no longer checked if it was not changed
- Fixed: Deleting a client's template could mess up his assigned templates
- Added: remoting functions to change client templates the new way