ibox now uses this as an initial test. there are teething problems:
1. unknown location for new icon (guess that its on right)
2. stacking - the animation is at the stacking layer of the comp obj
... this probably needs a way for the comp shobj to request a
temporary stacking change until anim done
Add a "clients" submenu to the right click menu to show the current container's clients and all iconified clients (so you can actually un-iconify now)
Add "iconify" subsystem to keep track of iconic windows. This will be used be used by modules to do things like taskbars and icon boxes.
SVN revision: 12534