lib/connections: Limit rate at which we print warnings about version mismatch
lib/connections: Limit rate at which we print warnings about version mismatch

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3291

lkwg82/syncthing,Kudalufi/syncthing,ProactiveServices/syncthing,syncthing/syncthing,wweich/syncthing,TheBigBear/syncthing,jryans/syncthing,kluppy/syncthing,uok/syncthing,AudriusButkevicius/syncthing,xduugu/syncthing,kamadak/syncthing,xduugu/syncthing,rumpelsepp/syncthing,AudriusButkevicius/syncthing,lkwg82/syncthing,nrm21/syncthing,jryans/syncthing,kamadak/syncthing,AudriusButkevicius/syncthing,wweich/syncthing,letiemble/syncthing,syncthing/syncthing,AudriusButkevicius/syncthing,TheBigBear/syncthing,cherylquirion/syncthing,rumpelsepp/syncthing,alex2108/syncthing,kamadak/syncthing,ProactiveServices/syncthing,Kudalufi/syncthing,letiemble/syncthing,cherylquirion/syncthing,brgmnn/syncthing,uok/syncthing,Kudalufi/syncthing,plouj/syncthing,kluppy/syncthing,wweich/syncthing,nrm21/syncthing,lkwg82/syncthing,TheBigBear/syncthing,brgmnn/syncthing,le9i0nx/syncthing,imsodin/syncthing,brgmnn/syncthing,imsodin/syncthing,wweich/syncthing,syncthing/syncthing,letiemble/syncthing,syncthing/syncthing,alex2108/syncthing,jryans/syncthing,lkwg82/syncthing,plouj/syncthing,uok/syncthing,xduugu/syncthing,xduugu/syncthing,le9i0nx/syncthing,syncthing/syncthing,kluppy/syncthing,ProactiveServices/syncthing,plouj/syncthing,syncthing/syncthing,plouj/syncthing,imsodin/syncthing,Kudalufi/syncthing,TheBigBear/syncthing,brgmnn/syncthing,jryans/syncthing,cherylquirion/syncthing,ProactiveServices/syncthing,imsodin/syncthing,nrm21/syncthing,alex2108/syncthing,le9i0nx/syncthing,uok/syncthing,nrm21/syncthing,rumpelsepp/syncthing,kamadak/syncthing,kluppy/syncthing,rumpelsepp/syncthing,letiemble/syncthing,le9i0nx/syncthing,alex2108/syncthing,imsodin/syncthing,cherylquirion/syncthing