Revert "Rename polymer and cr_elements v0_8 to v1_0"

third_party/polymer/v0_8/components/iron-selector/iron-selectable.html

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 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
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 <link rel="import" href="../polymer/polymer.html">
@@ skipping 287 matching lines @@
     _itemActivate: function(value, item) {
       if (!this.fire('iron-activate',
           {selected: value, item: item}, {cancelable: true}).defaultPrevented) {
         this.select(value);
       }
     }
 
   };
 
 </script>