Elliott Sprehn 8291177a0c Combine element registries from sky-binder and sky-element.
We now have an element-registry.sky module that exposes API to register
elements with attributes and event handlers. Right now it's an API on
the module itself, eventually the module will export an ElementRegistry
object since we'll need one per module once the custom element registry
is one per module.

R=abarth@chromium.org, ojan@chromium.org

Review URL: https://codereview.chromium.org/856693002
2015-01-15 20:31:32 -08:00
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2015-01-15 15:03:44 -08:00