add node_modules to gitignore
add node_modules to gitignore

openstreetmap/iD,bagage/iD,mapmeld/iD,energiekollektiv/openmod.sh-id,kepta/iD,andreic-telenav/iD,kepta/iD,openstreetmap/iD,zbycz/iD,kartta-labs/iD,bagage/iD,mapmeld/iD,openstreetmap/iD,ngageoint/hootenanny-ui,edpop/iD,energiekollektiv/openmod.sh-id,AndreasHae/iD,digidem/iD,kartta-labs/iD,1ec5/iD,tbicr/iD,AndreasHae/iD,mapmeld/iD,kartta-labs/iD,bagage/iD,digidem/iD,andreic-telenav/iD,zbycz/iD,edpop/iD,AndreasHae/iD,edpop/iD,morray/iD,1ec5/iD,ngageoint/hootenanny-ui,ngageoint/hootenanny-ui,morray/iD,tbicr/iD,1ec5/iD