Basic xtal-cascade demo

Polyfill support for runt browsers Polymer (non minified, uses bare import specifiers, which only works in Chrome thus far. This is just an example of a list generator which xtal-cascade can interface with. / End Polymer refs ===================== Buttons / Search field ========================== ================== Retrieve sample json file that has a dump of a bower file directory ============ ================== Train xtal-tree how to intepret / manipulate the json data ===================================== =============== Train xtal-cascade how to interpret / manipulate json data ============================= Style the tree UI elements Configure the flat list generator (iron-list)