Polymer v20130912 release

[Eric Bidelman]

bcc: polymer-announce

Hot off the press is Polymer v20130912! You can download it from the shiny new polymer-project.org:

Bower fans...the build files have been updated.

Major updates:

• <polymer-element> supports new requirements for type extension custom elements.
• The lifecycle entered/leftDocumentCallback have been renamed toentered/leftViewCallback to match the spec changes. Polymer supports entered/leftViewas the callback names defined in the Polymer() constructor call.
• polymer-elements and polymer-ui-elements now have config files so they can be pulled down using Bower.
• optimizations to the Shadow DOM polyfill

See the raw release notes.

Documentation love:

• Imperative registration example
• Explanation for the Llife of an element's bindings
• Examples of how to validate input/properties
• The updated custom element lifecycle method names: enteredDocument -> enteredView, leftDocument -> leftView
• Info on binding to <textarea>.value and <select>.selectedIndex/value

We'd like to hear your questions, complaints about crazy brokeness, or general excitement on the release.

Eric B