Update to leaflet v1.0.2.

assets/leaflet/leaflet.css

@@ -5,8 +5,8 @@
 .leaflet-marker-icon,
 .leaflet-marker-shadow,
 .leaflet-tile-container,
-.leaflet-map-pane svg,
-.leaflet-map-pane canvas,
+.leaflet-pane > svg,
+.leaflet-pane > canvas,
 .leaflet-zoom-box,
 .leaflet-image-layer,
 .leaflet-layer {
@@ -43,6 +43,7 @@
 /* .leaflet-container img: map is broken in FF if you have max-width: 100% on tiles */
 .leaflet-container .leaflet-overlay-pane svg,
 .leaflet-container .leaflet-marker-pane img,
+.leaflet-container .leaflet-shadow-pane img,
 .leaflet-container .leaflet-tile-pane img,
 .leaflet-container img.leaflet-image-layer {
 	max-width: none !important;