add chrome support; fix two text grabbing problems; eliminate unused lookup queue concept

reader.html

@@ -20,6 +20,7 @@ p
     margin-bottom: 5px;
 }
 </style>
+<script src="include/browser-polyfill.min.js" charset="UTF-8"></script>
 <script src="reader.js" charset="UTF-8"></script>
 </head>