Made upgrade-system smarter (fixes #2446)
Made upgrade-system smarter (fixes #2446)

jryans/syncthing,alex2108/syncthing,plouj/syncthing,AudriusButkevicius/syncthing,wweich/syncthing,jryans/syncthing,lkwg82/syncthing,brgmnn/syncthing,kc1212/syncthing,syncthing/syncthing,canton7/syncthing,plouj/syncthing,syncthing/syncthing,syncthing/syncthing,imsodin/syncthing,kluppy/syncthing,nrm21/syncthing,kralo/syncthing,uok/syncthing,buinsky/syncthing,lkwg82/syncthing,ProactiveServices/syncthing,nrm21/syncthing,syncthing/syncthing,toddleish/syncthing,wweich/syncthing,canton7/syncthing,wweich/syncthing,kamadak/syncthing,Kudalufi/syncthing,imsodin/syncthing,ProactiveServices/syncthing,ProactiveServices/syncthing,letiemble/syncthing,alex2108/syncthing,wweich/syncthing,alex2108/syncthing,kc1212/syncthing,imsodin/syncthing,jgke/syncthing,toddleish/syncthing,letiemble/syncthing,syncthing/syncthing,lkwg82/syncthing,uok/syncthing,kc1212/syncthing,jryans/syncthing,xduugu/syncthing,xduugu/syncthing,norgeous/syncthing,brgmnn/syncthing,kc1212/syncthing,rumpelsepp/syncthing,TheBigBear/syncthing,AudriusButkevicius/syncthing,alex2108/syncthing,Kudalufi/syncthing,le9i0nx/syncthing,jryans/syncthing,ProactiveServices/syncthing,Kudalufi/syncthing,uok/syncthing,letiemble/syncthing,nrm21/syncthing,kluppy/syncthing,xduugu/syncthing,toddleish/syncthing,kralo/syncthing,AudriusButkevicius/syncthing,kluppy/syncthing,norgeous/syncthing,xduugu/syncthing,plouj/syncthing,imsodin/syncthing,TheBigBear/syncthing,letiemble/syncthing,kamadak/syncthing,norgeous/syncthing,buinsky/syncthing,rumpelsepp/syncthing,uok/syncthing,norgeous/syncthing,canton7/syncthing,jgke/syncthing,buinsky/syncthing,kamadak/syncthing,plouj/syncthing,bigscoop/syncthing,lkwg82/syncthing,buinsky/syncthing,cherylquirion/syncthing,imsodin/syncthing,cherylquirion/syncthing,rumpelsepp/syncthing,le9i0nx/syncthing,jgke/syncthing,bigscoop/syncthing,syncthing/syncthing,brgmnn/syncthing,brgmnn/syncthing,rumpelsepp/syncthing,kralo/syncthing,toddleish/syncthing,bigscoop/syncthing,nrm21/syncthing,canton7/syncthing,le9i0nx/syncthing,le9i0nx/syncthing,Kudalufi/syncthing,cherylquirion/syncthing,jgke/syncthing,TheBigBear/syncthing,TheBigBear/syncthing,bigscoop/syncthing,AudriusButkevicius/syncthing,kluppy/syncthing,cherylquirion/syncthing,kralo/syncthing,kamadak/syncthing