[1/2] Base: add support Tinted System bar

thanks to ChameleonOs and Thinking Bridge for the base code
also thanks to @MuhammadAG for Actionbar implementation (Xposed-Tinted-Status-Bar)

this allow statusbar an navigationbar background to follow color from Top and Bottom of application

see https://plus.google.com/107971916147063794392/posts/Eaqn5UAvKDt

as bonus, we can call blurbackground from here too :)

Change-Id: I40f533dd404a02e10a85fed78123c60ffd51f387

Conflicts:
	core/java/android/app/Activity.java
	core/java/android/provider/Settings.java
	core/java/android/view/IWindowManager.aidl
	core/java/android/view/WindowManagerPolicy.java
	core/java/com/android/internal/app/ActionBarImpl.java
	core/java/com/android/internal/widget/ActionBarContainer.java
	core/java/com/android/internal/widget/ActionBarView.java
	packages/Keyguard/src/com/android/keyguard/KeyguardViewManager.java
	packages/SystemUI/src/com/android/systemui/BatteryMeterView.java
	packages/SystemUI/src/com/android/systemui/BatteryPercentMeterView.java
	packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/BarTransitions.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarTransitions.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarTransitions.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettings.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/Ticker.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkTraffic.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
	services/java/com/android/server/wm/WindowManagerService.java