put layer-gpx after layer-data (closes #2352, #2335)
put layer-gpx after layer-data
(closes #2352, #2335)

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