Base: Allow hiding notification icons

When long pressing a notification, add another menu
item which allows the user to hide the notification icon
(but keep the actual notification in the dropdown).

This is meant for applications which have services running
in the statusbar which the user is aware of, so right now
we hide the icon by the package.

Change-Id: I60c8705e1fd02d7b26dbe90fe39a3b40febdbfcc
Frameworks: notification drawer background (1/2)

so after keyguard is mostly done let us start notification drawer
and QS. First one custom background.....either color or picture
with custom alpha and ability to set a landscape picture seperatly
(landscape phone only)

Compared to the 4.3 included version completly recoded and better
integrated. No idea what I thought 1 year ago on the old implementation

cheeers

Change-Id: Ia823856b755a129ea1fcddc2e24cb043ac37d621

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
fb: notification transparency (1/2)

this add back notification transparency...compared to 4.3
it controlls as well the notification icon backgound transparency
which felt in the past dissplaced. As well codecleanup of the old
implementation.

largeIcon support I did not add due that google does not support it
as well at current status...it is only a placeholder in
NotificationData

Change-Id: Ia2c6761575dcf62adc5eae248125d4e0ad67be5e
Fix for Lock before unlock (read description)
- Using lock before unlock combined with patterm pin or password when try to unlock using any app or activity instead of normal lock (padlock shortcut) the unlock process only work if we enter the method two times and not in first attempt.

Change-Id: I60c0ec22d7b0278fd0e3b69c42fad6e2afdd5b92
Adjust Clear all button margin

Change-Id: I64e3652dbb41da42453177beb6b4c9f24d77b1c8