pa7/heatmap.js — pull request #48 by snkashis (2013-04-09 10:09:22+00:00)
Title: Fix static display in Leaflet 0.6-dev , 

Leaflet 0.6-dev was wiping out the z-index of heatmap's tile-layer after zoom...

This sets the z-index to safe value after the .clear() ...and its backwards compatible with older leaflets as well.

demo page included.

Fixes #45.