VIVO-873 Adapt the client code to the new interface.

Create a bridge implementation of SearchIndexerImpl that just wraps around an old IndexBuilder.

Modify client code:
Application, BasicAuthenticator, SearchServiceController, SparqlUpdateApiController,
UpdateUrisInIndex and VClassGroupCache

Rewrite IndexController to use AJAX and to show the current status and history of the indexer events.

webapp/web/js/search/searchIndex.js

@@ -0,0 +1,22 @@
+/* $This file is distributed under the terms of the license in /doc/license.txt$ */
+
+/*
+    Functions for use by searchIndex.ftl
+*/
+
+function updateSearchIndexerStatus() {
+    $.ajax({
+        url: searchIndexerStatusUrl,
+        dataType: "html",
+        complete: function(xhr, status) {
+        	updatePanelContents(xhr.responseText);
+        	setTimeout(updateSearchIndexerStatus,5000);
+        }
+    });
+}
+
+function updatePanelContents(contents) {
+	document.getElementById("searchIndexerStatus").innerHTML = contents;
+}
+
+$(document).ready(updateSearchIndexerStatus());