Don't use string for default version
Don't use string for default version

No need to go via string and cast that to int, just return int directly.

Contributes to issue CURA-3427.

fieldOfView/Cura,ynotstartups/Wanhao,ynotstartups/Wanhao,Curahelper/Cura,Curahelper/Cura,fieldOfView/Cura