Merge of all UI clustering changes originally applied to 2.2

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@8292 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/bean/ml/MultilingualUtils.java

@@ -24,6 +24,7 @@
  */
 package org.alfresco.web.bean.ml;
 
+import java.io.Serializable;
 import java.util.Locale;
 import java.util.Map;
 
@@ -42,10 +43,12 @@ import org.alfresco.web.bean.repository.Node;
  *
  * @author yanipig
  */
-public class MultilingualUtils
+public class MultilingualUtils implements Serializable
 {
 
-    /**
+    private static final long serialVersionUID = 2218309432064312000L;
+
+   /**
      * Returns true if the current user has enough right to add a content to the space
      * where the pivot translation is located in.
      *