Merged 5.2.N (5.2.1) to HEAD (5.2)

132474 cturlica: REPO-1537: PUT people/personId retrieves unsupported userName instead of id
      - updated to use id instead of userName


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@132668 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/rest/api/people/PeopleEntityResource.java

@@ -153,7 +153,8 @@ public class PeopleEntityResource implements EntityResourceAction.ReadById<Perso
 
         if (person.getUserName() != null)
         {
-            throw new InvalidArgumentException("Unsupported field: userName");
+            // REPO-1537
+            throw new InvalidArgumentException("Unsupported field: id");
         }
 
         if (person.getStatusUpdatedAt() != null)