Further handle sites with spaces

The earlier fix allowed us to contact the Site, but creating the display
URL failed. This change fixes the display URL generation.
diff --git a/src/com/google/enterprise/adaptor/sharepoint/SharePointAdaptor.java b/src/com/google/enterprise/adaptor/sharepoint/SharePointAdaptor.java
index 99b30c9..25e90d1 100644
--- a/src/com/google/enterprise/adaptor/sharepoint/SharePointAdaptor.java
+++ b/src/com/google/enterprise/adaptor/sharepoint/SharePointAdaptor.java
@@ -812,7 +812,7 @@
             .build());
       }
 
-      response.setDisplayUrl(URI.create(w.getMetadata().getURL()));
+      response.setDisplayUrl(spUrlToUri(w.getMetadata().getURL()));
       response.setContentType("text/html");
       HtmlResponseWriter writer = createHtmlResponseWriter(response);
       writer.start(request.getDocId(), ObjectType.SITE,