Add support for "new-style grids" and "model master views".

Finally, an API that makes some sense...  We don't yet have feature parity
with the old-style grids and CRUD views, but this is already a significant
improvement to the design.  Still needs a lot of docs though...

tailbone/static/js/tailbone.js

@@ -112,6 +112,11 @@ $(function() {
     $('input[type=submit]').button();
     $('input[type=reset]').button();
 
+    /*
+     * Enhance new-style grids.
+     */
+    $('.newgrid-wrapper').gridwrapper();
+
     /*
      * When filter labels are clicked, (un)check the associated checkbox.
      */