Leaflet/Leaflet — pull request #1669 by jfirebaugh (2013-05-10 22:24:49+00:00)
Title: Popup-specific closeOnClick option

This is needed for fixing mapbox/mapbox.js#382 -- it needs to
disable this option for a specific popup.

This feels like it should have been a per-popup option from the
start, so I would support removing the map-wide closePopupOnClick
option, if you think that's ok.