upgrade to glpi0.83: replace function by static call in dropdown operatingsystems (groups)
upgrade to glpi0.83: replace function by static call in dropdown operatingsystems (groups)

fusioninventory/fusioninventory-for-glpi,fusioninventory/fusioninventory-for-glpi,dethegeek/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,fusioninventory/fusioninventory-for-glpi,itinside/fusioninventory-for-glpi,fusioninventory/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,orthagh/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,fusioninventory/fusioninventory-for-glpi,orthagh/fusioninventory-for-glpi,dethegeek/fusioninventory-for-glpi,itinside/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,dethegeek/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,orthagh/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,fusioninventory/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,dethegeek/fusioninventory-for-glpi,itinside/fusioninventory-for-glpi,orthagh/fusioninventory-for-glpi,TECLIB/fusioninventory-for-glpi,itinside/fusioninventory-for-glpi,orthagh/fusioninventory-for-glpi,mohierf/fusioninventory-for-glpi,itinside/fusioninventory-for-glpi