const with for-of not actually ok in all version of node 4
const with for-of not actually ok in all version of node 4

mapmeld/iD,edpop/iD,kartta-labs/iD,ngageoint/hootenanny-ui,bagage/iD,bagage/iD,morray/iD,kartta-labs/iD,AndreasHae/iD,edpop/iD,kartta-labs/iD,openstreetmap/iD,openstreetmap/iD,1ec5/iD,ngageoint/hootenanny-ui,edpop/iD,mapmeld/iD,1ec5/iD,AndreasHae/iD,AndreasHae/iD,mapmeld/iD,morray/iD,1ec5/iD,digidem/iD,digidem/iD,ngageoint/hootenanny-ui,openstreetmap/iD,bagage/iD