Does not match current version of polymer-rails

[phoenixeliot]

This example doesn't work with the version 0.3.0 of polymer-rails.

The most obvious change necessary is that in application.js,

//= require polymer/polymer

becomes

//= require webcomponentsjs/webcomponents-lite

But after that, I'm getting the same problem I got from my own experimentation: The custom element is simply not inserted into the page.

Given that this is the only example for the polymer-rails gem, it'd be lovely to see it updated to work again.