Make this work on old leaflet too. Thanks @nkovacs
Update build
Merge pull request #162 from skullbooks/master

Add an example that shows some strange error with a disappearing marker.
Move example to old-bugs dir (not that it is fixed yet)
Fix clearLayers with spiderfied markers. Refs #162
Remove hasProperty checks from loops. Refs leaflet/leaflet#1606
Update build
Merge pull request #1 from Leaflet/master

Update fork with original.