Modified level of logging to warn when a resource bundle is missing.

git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@1190 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/util/LocaleUtils.java

@@ -281,7 +281,7 @@ public class LocaleUtils {
             }
         }
         catch (java.util.MissingResourceException mre) {
-            Log.error("Missing resource for key: " + key
+            Log.warn("Missing resource for key: " + key
                     + " in locale " + locale.toString());
             value = "";
         }