License: Dual-licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) and the Beerware (http://en.wikipedia.org/wiki/Beerware) license.
 * heatmap.js 0.2 Leaflet overlay
 *
 * Copyright (c) 2012, Dominik Moritz
 * Dual-licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * and the Beerware (http://en.wikipedia.org/wiki/Beerware) license.
 *
 * Attribution for snippets: https://gist.github.com/2566567
AUTHORS:
Dominik Moritz
License: Dual-licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) and the Beerware (http://en.wikipedia.org/wiki/Beerware) license.
 * heatmap.js 1.0 -    JavaScript Heatmap Library
 *
 * Copyright (c) 2011, Patrick Wied (http://www.patrick-wied.at)
 * Dual-licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * and the Beerware (http://en.wikipedia.org/wiki/Beerware) license.
AUTHORS:
Patrick Wied
