Add lazyRegister and useNativeCSSProperties options (#32)

Author: ebidel

demo/codelab.html

@@ -20,12 +20,16 @@
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
   <title>codelab demo</title>
-  <script src="../../webcomponentsjs/webcomponents-lite.min.js" aysnc></script>
+  <script src="../../webcomponentsjs/webcomponents-lite.min.js" async></script>
   <script>
-    window.Polymer = window.Polymer || {dom: 'shadow', lazyRegister: true};
+    window.Polymer = {
+      dom: 'shadow',
+      lazyRegister: 'max',
+      useNativeCSSProperties: true
+    };
   </script>
   <link rel="stylesheet"
-      href="//fonts.googleapis.com/css?family=Roboto:300,400,400italic,500,500italic,700,700italic|Roboto+Mono:400,700">
+        href="//fonts.googleapis.com/css?family=Roboto:300,400,400italic,500,500italic,700,700italic|Roboto+Mono:400,700">
   <link rel="import" href="../../iron-icons/iron-icons.html">
   <link rel="import" href="../../paper-button/paper-button.html">
   <link rel="import" href="../google-codelab-elements.html">