mozilla-b2g/gaia — pull request #4272 by alivedise (2012-09-03 09:06:17+00:00)
Title: Coordinate the module ordering according to UI order(z-index)

I find that many modules in system app handle and **dismiss** home event on their own.
Dismissing is according to module(js file) order in `index.html` now,
it is to say, the ordering of home event dismissing is incorrect.
It must base on zIndex -- UI ordering.

Also, the PR modify the home event handling of `CardsView` module, not living in `window manager` anymore.