- Added: remoting will return the template_additional param for clients in the new style - compatible with old style

- 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

Fixed/Implemented: replaced intval() by $app->functions->intval() in all interface functions due to big number problem in intval()

Fixed: Subtemplates can now be given on client creation in remoting (i.e. 10/34/21 for multiple addons)
Changed: template applying moved to separate class
Fixed: force_suexec was not taken from templates

- Added interface plugins for db and db users
- changed remoting (splitted up insert, update and deletequery)

- Added plugin for vhost subdomains to catch onafterinsert/update

FS#2288 - Importer for data from Plesk control panel (first INCOMPLETE version, see bugtracker for status)

Added dns_zone_get_id function get id from domain name. To discover a domain id passing domain name as argument.

  @param  -> session_id
  @return -> Array of all Client IDs on server