fix menu not being updated when going back from headlines to sliding

menu in offline mode (closes #764)

src/org/fox/ttrss/offline/OfflineFeedsActivity.java

@@ -65,9 +65,10 @@ public class OfflineFeedsActivity extends OfflineActivity implements OfflineHead
 						m_actionbarUpEnabled = false;
 						m_feedIsSelected = false;
 						getSupportActionBar().setDisplayHomeAsUpEnabled(false);
-						initMenu();
 						refresh();
 					}
+					
+					initMenu();
 				}
 			});
 		}