It's now sending them. The beeping and vibrating accessibility things
work, but we only have prebuilts for the speech one and it's not saying
anything and I can't debug it, so this will have to do.
- Make rollo always draw. This works around the bug somewhere that makes
it show gray when all apps shold be closed
- Simplify the SwipeController now that we're not zooming the workspace.
- Make the readback data sane by splitting it to a different allocation.
Now there is one allocation for each direction of data flow.
- Make AllAppsView.isVisible return the correct value.
Joe Onorato