Run bower update

third_party/polymer/components/iron-validatable-behavior/iron-validatable-behavior.html

 <!--
 @license
 Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
 This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
 The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
 Code distributed by Google as part of the polymer project is also
 subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
 -->
 
@@ skipping 63 matching lines @@
        * Namespace for this validator. This property is deprecated and should
        * not be used. For all intents and purposes, please consider it a
        * read-only, config-time property.
        */
       validatorType: {
         type: String,
         value: 'validator'
       },
 
       _validator: {
+        type: Object,
         computed: '__computeValidator(validator)'
       }
     },
 
     observers: [
       '_invalidChanged(invalid)'
     ],
 
     registered: function() {
       Polymer.IronValidatableBehaviorMeta = new Polymer.IronMeta({type: 'validator'});
@@ skipping 45 matching lines @@
       return true;
     },
 
     __computeValidator: function() {
       return Polymer.IronValidatableBehaviorMeta &&
           Polymer.IronValidatableBehaviorMeta.byKey(this.validator);
     }
   };
 
 </script>