. Implemented 'rename' for AVM files/folders

- this has highlighted some interesting future issues with AVM NodeRef objects - as unlike the usual noderefs, they can change due to a rename or move!
. Fixed issue with navigating back to details and browse screens after a delete file/folder operation

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@4004 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/bean/wcm/DeleteFileDialog.java

@@ -8,7 +8,6 @@ import org.alfresco.service.cmr.avm.AVMService;
 import org.alfresco.web.app.AlfrescoNavigationHandler;
 import org.alfresco.web.app.Application;
 import org.alfresco.web.bean.dialog.BaseDialogBean;
-import org.alfresco.web.bean.repository.Node;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
@@ -72,9 +71,6 @@ public class DeleteFileDialog extends BaseDialogBean
    @Override
    protected String doPostCommitProcessing(FacesContext context, String outcome)
    {
-      // clear action context
-      this.avmBrowseBean.setAvmNode(null);
-      
       return AlfrescoNavigationHandler.CLOSE_DIALOG_OUTCOME;
    }