Layout and resizing

[TiloS]

In 4.1b1 and 4.1b2 the layouts are not resizeable. Has no one seen that?
for example:
1. border layout of viewport does not resize when I rezize the browser (IE and firefox)
Ext.create('Ext.container.Viewport', {
layout:'border',
resizable: true,
...
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
columns:[
{
header:'a',
dataIndex: 'name',
flex: 1
}
4. Resize events don't fire. In 4.07 the same events fire.

What happened?

[mankz]

When does it make sense to use 'resizable' on a Viewport?

[TiloS]

I just tryed it after I find out that automatically resizing don't work (with many components).