Started revamp of the Tilemap system. Also removed old 'Advanced Physics' and dropped in p2.js which is what I hope we'll eventually use.

src/physics/advanced/material/Material.js

@@ -0,0 +1,19 @@
+module.exports = Material;
+
+var idCounter = 0;
+
+/**
+ * Defines a physics material.
+ * @class Material
+ * @constructor
+ * @param string name
+ * @author schteppe
+ */
+function Material(){
+    /**
+     * The material identifier
+     * @property id
+     * @type {Number}
+     */
+    this.id = idCounter++;
+};