Revert 6914a00d4 because it broke 'add event' map
Revert 6914a00d4 because it broke 'add event' map

reopens #512

RickMohr/nyc-trees,azavea/nyc-trees,kdeloach/nyc-trees,maurizi/nyc-trees,azavea/nyc-trees,azavea/nyc-trees,maurizi/nyc-trees,RickMohr/nyc-trees,azavea/nyc-trees,kdeloach/nyc-trees,maurizi/nyc-trees,kdeloach/nyc-trees,kdeloach/nyc-trees,RickMohr/nyc-trees,RickMohr/nyc-trees,azavea/nyc-trees,maurizi/nyc-trees,kdeloach/nyc-trees