Custom notifications for contacts

Change-Id: I19b03cc98b051911fbb82d1f71682f0c105f4d78
Revert removing FLAG_ACTIVITY_CLEAR_TOP from intent
Removing that flag from the intent provokes some apps not being able to finish pressing the back key.
This change doesn't affect other opened apps.

Change-Id: I566a8008459bcb857909fb6693d228d31f557d23
NotificationManager : Fix security exception

Change-Id: I14506468e293cbe93d9bd25a1ad2b7e0b0621cc7
HALO: halo can save last position now

Change-Id: Ibe2454eb0ba422f7bde21251333c6180245f6400
HALO: Fix halo button animations

Change-Id: I57a205c6f6ff9eec76152b87edff51f7efe7dc92
Minor fix

Change-Id: If2cd8bd2a2e2795a174794c52f48cae315607c66