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

Fixed: Database creation on APS

Implemented: FS#560 - Add support for APS (Application Packaging Standard)