Fixed: CPTabView will now update its tabs labels when the layoutSubviews method is called. Fixes 1926

AppKit/CPTabView.j

@@ -379,6 +379,7 @@ var CPTabViewDidSelectTabViewItemSelector           = 1,
         [_box setFrame:CGRectMake(0, origin, CGRectGetWidth(aFrame),
                                    CGRectGetHeight(aFrame) - segmentedHeight / 2)];
 
+        [self _updateItems];
         [self _repositionTabs];
     }
 }