dijit.layout.BorderContainer tests

The second tab holds a single BorderContainer but specifying layoutPriority on it's children to have multiple children for each region.

The first tab holds a BorderContainer which nests another BorderContainer, simulating multiple children in a single region.

left
right
top bar
bottom bar
left inner
right inner
inner top bar
inner bottom bar
main panel with a link.
(to check we're copying children around properly).
Here's some text that comes AFTER the combo box.