Add implementation for directional tag reversal for nodes on a way.
Add implementation for directional tag reversal for nodes on a way.

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