Added auth code for use when the server is operational but not available.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1583 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/presents/data/AuthCodes.java

@@ -1,5 +1,5 @@
 //
-// $Id: AuthCodes.java,v 1.1 2002/07/12 16:17:45 mdb Exp $
+// $Id: AuthCodes.java,v 1.2 2002/07/17 18:10:04 mdb Exp $
 
 package com.threerings.presents.data;
 
@@ -18,4 +18,7 @@ public interface AuthCodes
     /** A code indicating that an internal server error occurred while
      * trying to log the user on. */
     public static final String SERVER_ERROR = "m.server_error";
+
+    /** A code indicating that the server is not available at the moment. */
+    public static final String SERVER_UNAVAILABLE = "m.server_unavailable";
 }