More closely match the intended design of the bookmark grid page.

Change the look of the text.  Use a blank white rectangle with
rounded corners for sites without a stored screenshot.  Also
begin work on using the favicon.
diff --git a/res/drawable/blank.xml b/res/drawable/blank.xml
new file mode 100644
index 0000000..724f5e7
--- /dev/null
+++ b/res/drawable/blank.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <shape>
+            <corners android:radius="5dip"/>
+            <solid android:color="@color/white"/>
+        </shape>
+    </item>
+</layer-list>