registerElement is deprecated and the latest webcomponentsjs (>1.0) doesn't seem to be polyfilling registerElement, which makes app-router unusable with Polymer 2 + Firefox. Instead, we'll use the platform
This PR ...
updates components to use ES6 classes and uses the customElements.define API
updates build process with babel to transpile down to ES5
removes core-animated-pages support because that was a Polymer 0.5 or less product that is no longer supported
may break a lot of things - but it now works in FF with Polymer 2.0
registerElement is deprecated and the latest webcomponentsjs (>1.0) doesn't seem to be polyfilling registerElement, which makes app-router unusable with Polymer 2 + Firefox. Instead, we'll use the platform
This PR ...