In 4.1b1 and 4.1b2 the layouts are not resizeable. Has no one seen that?
1. border layout of viewport does not resize when I rezize the browser (IE and firefox)
2. when I close a panel in vbox layout the panel area and the other panels are not resized
3. flex settings of grid-columns don't work
4. Resize events don't fire. In 4.07 the same events fire.