Lower redraw threshold to 1px
Lower redraw threshold to 1px

AndreasHae/iD,openstreetmap/iD,ngageoint/hootenanny-ui,AndreasHae/iD,kartta-labs/iD,morray/iD,kartta-labs/iD,digidem/iD,openstreetmap/iD,morray/iD,kartta-labs/iD,openstreetmap/iD,AndreasHae/iD,ngageoint/hootenanny-ui,digidem/iD,ngageoint/hootenanny-ui