Don't render background() when adding map to initial #map div
Don't render background() when adding map to initial #map div

This was triggering an unnecessary render at zoom 2
right before the map was properly centerzoomed

kartta-labs/iD,morray/iD,AndreasHae/iD,kartta-labs/iD,digidem/iD,digidem/iD,openstreetmap/iD,AndreasHae/iD,kartta-labs/iD,openstreetmap/iD,AndreasHae/iD,openstreetmap/iD,morray/iD