L.Control.Layers: 'overlayadd' and 'overlayremove' event should also fire on external overlay changes.
External baselayer changes should fire 'baselayerchange' instead of 'overlayadd'
'baselayerchange' event should fire with layer name(use object in _layers of L.Control.Layers) instead of only layer.
update build
removeEventListener with same context used for adding it
Merge pull request #1760 from yohanboniface/markerdrag_off

remove EventListener with same context used for adding it
Toggle the display of a marker s popup on click
pass through coordsToLatLng when processing GeometryCollection
Merge pull request #1762 from sheppard/master

pass through coordsToLatLng when processing GeometryCollection
Add Leaflet.Elevation plugin
Typo fixed
Merge pull request #1763 from MrMufflon/gh-pages

Add Leaflet.Elevation plugin
Merge pull request #1761 from popox/marker-togglePopup

Nice to have feature - Toggle the display of a marker's popup on click
Added zoomify plugin
Add parameter to invalidateSize for changing the center.
Merge pull request #1765 from turban/gh-pages

Added Zoomify plugin
Moving brace to correct position.
Merge pull request #1766 from jacobtoye/invalidate-size-without-changing-center

Add parameter to invalidateSize for changing the center.
update changelog with last month improvements
update build
group API bugfixes in changelog