[1/2] Frameworks: Add in-the-spot user preference dialog

This is a new way to setup your device, more intuitively, without diving into a sea of a hundred of menus
The basic idea is taken from TouchWiz roms (here: http://goo.gl/W40rF6)
Also create a helper class for implementing this easier all around the ROM and implement it for first time on Quick Pull down

Drawables by Arz Bhatia

PS2: Code style fixes

Change-Id: I95695a8cbbfea7740b6417ff9ba9ef84e0b7cdd7

Conflicts:

	core/java/android/provider/Settings.java
	core/res/res/values/pa_strings.xml
	core/res/res/values/pa_symbols.xml
	packages/Keyguard/res/values/slim_strings.xml
	packages/SystemUI/res/values-es/pa_strings.xml
	packages/SystemUI/res/values/pa_strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettings.java
Recents: Clear all button for recent apps.

An icon will appear on navbar when there are apps available to be killed on recent apps.

Credits to @BigBrother1984 for kitkat porting from jellybean

Patchset 2: Tablet mode is deprecated now, so no need of multiple callbacks
Patchset 3: Remove copyright from unaffected files
Patchset 4: Remove unused imports

Change-Id: I93d1d4cb34325190b03ae3a0d40e1bc170c92d91

Conflicts:

	core/java/android/app/StatusBarManager.java
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_recent_clear.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_recent_clear_land.png
	packages/SystemUI/src/com/android/systemui/recent/RecentsHorizontalScrollView.java
	packages/SystemUI/src/com/android/systemui/recent/RecentsPanelView.java
	packages/SystemUI/src/com/android/systemui/recent/RecentsVerticalScrollView.java
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java