* Exclude key/value-only backup participants until we have a chance to
augment the archive format with proper handling.
* Don't back up 'stopped' apps, which would un-stop them
* Fix unspecified-user bindService/startActivity invocations
* Teach adb restore about the onRestoreFinished() lifecycle method
* Implement proper app timeout handling in the adb data flows
* Backstop wallpaper backup against rare leftover-state issues
Bug 28056941
Change-Id: Ia59c71a2c74a632a2c2a527b9b7374229c440d46
5cb5e89d77