fix address example by using bitcore.Address

examples/example.html

@@ -12,7 +12,7 @@
     <script src="../browser/bundle.js"></script>
 
     <script type="text/javascript">
-      var Address = require('Address');
+      var Address = require('bitcore').Address;
 
       print = function(s){
         var div = document.getElementById('content');