Heads up master switch (1/2)

Create a global heads up switch to enable/disable the same.
The user still need to set each app in Settings -> Apps

PS: disabling through master switch will automatically turn of  call ui and mms heads up notifications

Change-Id: I650e230d275247251435c5cfeb728e375e927045

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
BlurManager

* Hello guys, this is my BlurManager implemented as a system service + internal API.
The usage is very simple. At the moment you can retrieve a blurred wallpaper, a blurred screenshot of the running activity or blur your custom bitmap.
I'm also working in another api to blur custom views.

To get a blurred screenshot you have to call the prepare() void.

* An interface void will be called once the bitmap is ready returning the blurred bitmap.

You can check my other upcoming commit for blurring recents panel to understand how it works but im sure you'll get it easyli.

This is a little gift for Sean :)

Change-Id: I1b01a287f9b40520bd11f5c74810d98f3d2d1415

Conflicts:
	core/java/android/app/ContextImpl.java
Recents goes blur
Thanks@AICP
Hover: open app in fullscreen on longclick

As requested in AOSPA-793

Question to discuss: is there a better way than a longpress?

Change-Id: I0d8dc82e22717641e93fc279206635bd9de31f6d

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/notification/Hover.java
	packages/SystemUI/src/com/android/systemui/statusbar/notification/NotificationHelper.java
Headsup:Fix CommandQueue derp
Update Pie QS Icons

The current pie icons are pretty outdated and neither are they available in XXHDPI resolution. This change adds new icons in all resolutions.

Change-Id: I44d777e2976fb00b3b775ecf554fe5e0754c7197
Update the volume panel color to match Hover
Thanks Arz Bhatia
(1/4) Base: real non intrusive UI
Update API
Android L softkeys
Update Roboto fonts to Android L versions

Change-Id: I541694b159e32bb90c1889e894c4352e43f3ce40