Disable ticker preference [1/2]

Ticker can be annoying when you're getting spammed by an angry girlfriend
and various other girls at the same time.  Lets disable it until the problem
just goes away :D

Change-Id: I696dcc0e020e3548dabd5c801cafb4a5076f15bd
Status bar: disable alarm icon preference [1/2]

The only way to disable this is in the deskclock app.  if the user doesn't use
this app or deletes it there's no way to disable it for other apps.

Change-Id: Ie4c897a559399e31940ae5954e90fe1cd5924766