PhoneWindowManager: add ability to use EdgeGestureService for system gestures.

Update: Default to enabled

Change-Id: Id4e2c0d82f771cd1c20e9196fb6db347494cca69

Conflicts:
	core/java/android/provider/Settings.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
[1/2] Frameworks: Wakelock Blocker

Conflicts:

	core/java/android/os/IPowerManager.aidl
	core/java/android/provider/Settings.java
	services/java/com/android/server/power/PowerManagerService.java

Change-Id: Id4fd1d8da6ed40517094a5a156f7c6fea622e985

Conflicts:
	core/java/android/os/IPowerManager.aidl
	core/java/android/provider/Settings.java
Show live wallpapers in the recents view on high-end devices

Change-Id: Iefbf4f292b6a9bfdb516f154cc2976db2ba86cde
SystemUI: Always show translucent decor on recents panel

Change-Id: Id3e371f841b065ba6ac7693d96b38504354b4fd9
fb: handle for our navigation bar recentspreload in the button

Recents screen is since some time wonky. With new hardwarekey rebinding
it showed now only more how wonky it is due that home button does not
cancel the preload always to keep the hwkey button logic alive.
As well a problem is that if you bind recents to whatever other navbar
button the preload takes no effect at all (is only binded from google to
the recent tagged view)

Whatever to solve this let the buttons itself decide dependend on the
action if a preload or cancelpreload is needed an peform the action.

This solves all the weird recent screen behaviours and we will need it for
the new recents screen which is in development as well

It looks a bit weird to aquire the statusbar service here for this but in the
button itself there are not much other alternatives. In theory we could set listeners
like google but instead to all buttons and fetch the action from there to decide but
this gives a problem to get if it was a longpress recents or a normal press recents.

So this way seems to be ok.

Change-Id: I9b3b08356f72840399eaabd0be8b0c3fdf09a4bd

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyButtonView.java
SystemUI: Fix missing top task in recent panel.

If preloadRecentTasksList was not called or was called too
late and RecentsActivty already started and last top activity has
excludeFromRecents flag setted it might be missing
from recent application list.

Change-Id: Idf7153824805ceea9fcaf04ac645b73a5e93a4d9