Leaflet/Leaflet — pull request #1846 by jfirebaugh (2013-07-08 23:53:25+00:00)
Title: Fire layerremove after removing the layer

This is consistent with 0.5.x and seems more useful. Updating
the state of a layer switcher using map.hasLayer in response
to layeradd and layerremove events is my use case.