Cwiiis homescreen edit animation

Contains latest patches from master, and a rebase fix: (https://github.com/KevinGrandon/gaia/commit/b8e532957dadb10721e066b8c2718706417921b1)

If you apply this pull request, you can rebase against upstream master and squash mine into yours. I'm trying to make life easier, but maybe I've made things more difficult :)