Mention anonymous CVS problem.

cvs.html

@@ -39,6 +39,12 @@
     </p>
 
     <h2>Anonymous CVS Access (Read-Only)</h2>
+    <p>
+      <strong>Unfortunately, anonymous CVS is down at the moment, if you need
+	access to the development version, use the <a
+	  href="http://www.sane-project.org/snapshots/">development
+	  snapshots</a> instead.</strong>
+    </p>
     <p>
       To use <em>anonymous</em>
       CVS, use the following commands (just press enter when asked for the