Keyguard: do not play sounds while phone call is active

Change-Id: I834ad52bf7406b92af0840267960bbd959eb8709
Signed-off-by: Roman Birg <roman@cyngn.com>
On-The-Spot: Add information on how to reset preferences

Info is added to the main On-The-Spot preference dialog.
(As suggested by +Carlo Savignano)

PS 2:
* delete unneeded code

PS 3:
(https://dl.dropboxusercontent.com/u/90317107/on_the_spot_pref_helper.png)
* Unclutter OTS Dialog

Change-Id: Iaf4f67e4b03babd1d6a604c2524781a748dd8025
Signed-off-by: kajuten <julian.kaltenhofer@gmail.com>
Revert "Keyguard: don't try to fetch the badgeIcon if remoteClientPackage == null"

This reverts commit 7c97f6f0ef5498a6b16ac76753aef5dc36cff9c4.