Added Polymer 0.5.4

polymer_0.5.4/bower_components/web-animations-js/src/normalize-keyframes.js

 // Copyright 2014 Google Inc. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 //     You may obtain a copy of the License at
 //
 // http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 90 matching lines @@
       'outlineWidth'
     ],
     padding: [
       'paddingTop',
       'paddingRight',
       'paddingBottom',
       'paddingLeft'
     ]
   };
 
-  var shorthandExpanderElem = document.createElement('div');
+  var shorthandExpanderElem = document.createElementNS('http://www.w3.org/1999/xhtml', 'div');
 
   var borderWidthAliases = {
     thin: '1px',
     medium: '3px',
     thick: '5px'
   };
 
   var aliases = {
     borderBottomWidth: borderWidthAliases,
     borderLeftWidth: borderWidthAliases,
@@ skipping 128 matching lines @@
     return keyframeEffect;
   }
 
   shared.normalizeKeyframes = normalizeKeyframes;
 
   if (WEB_ANIMATIONS_TESTING) {
     testing.normalizeKeyframes = normalizeKeyframes;
   }
 
 })(webAnimationsShared, webAnimationsTesting);