Polymer/polymer-ui-elements — pull request #18 by gerryster (2013-08-18 00:46:24+00:00)
Title: <polymer-ui-overlay> modal fixes

This fixes two issues when using the the element with modal="true". The first commit allows the attribute to act as a modal dialog where it can only be closed by activating the element with the overlay-toggle attribute. The second commit prohibits the modal overlay from being closed by clicking on the backdrop by removing the toggle click handler.