Reduce observers in SystemUI: KeyButtonView

This is based on the work by Jens Doll for the StatusBarIconView

The ContentObserver class will be a singleton, so there is only
one observer for all buttons.

On my Nexus 10 it reduced the observer count from 48 to 4.

This version fixes the funky glow effect.

Change-Id: Ie242e3771c41f6010ac12246372107a2a3e165cd
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java
Hangout assets

Change-Id: I383b2fffb7f86fbaaa1fc92e650b74eb586276bf
Fixing crash in PhoneNumberUtils getNumberFromIntent

Handling intent with no data when trying to retrieve number from
intent.

Change-Id: If7c5930e7048aec732fb7a3fbeb3391e1408b071
Fix BatteryBar showing on all 3 locations

Change-Id: Idbdd16ea5442b032119ce48d586b2207e8cf0281
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>
Add BAMF theme engine

Thanks to travp624 @ TeamBaked for originally porting this

Change-Id: I9dd9347ac62e3b1fb49a4562d84eb7b295cdc2b2
Telephony: Add DCHSPAP to getTcpBufferSizesPropName

Change-Id: I868f0eae2db6032b43e9c1a1bd23860ab7bbebca
FW:  Bring Autohide to SystemBar (1/2)

AutoHide for SystemBar (TabUI)

ps 2:  Fix screen reset/calcs in PWM

Change-Id: I194d4e0d0343aac809bcee8b93a0ddd43341c64a
Signed-off-by: Zaphod <mwilson@acesappraisal.com>

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/tablet/TabletStatusBar.java
Lockscreen Longpress: Unlock Logic

In my opinion, we should unlock after
    user removes their finger.
This matches short-press unlock better
    and allows the user to change their mind
    on a target (I do that a lot).
Added a vibration action on longpress
    being true.

Change-Id: Ife590119dbdf10474b9c62f252e7f5d6dfc87387