SysUI:  NavBar & Widgets rollup [1/2?]

This will bring back NavBar widgets, along with some
changes/rollups on the NavBar side.
Very much a WIP. Just wanted to post where I was so others
could continue if I get busy.

2 :  Address some Tablet stuff
3 :  Icons & Strings
4 :  another icon
5 :  more icons & layouts
6 :  fix some shortcut/aokp action stuff- fix NavRing so it
     only inflates on swipe, not long press of home.
7 :  Roll in jubakuba's porting of Hide NavBar.  Really needed to
     be handled in this mega-NavBar commit rather than separately.
8 :  API change fix for setInitialDisplaySize
9 :  restore Searchlight (NavRing on lockscreen) that got removed
     during the previous edits.
10 : move togle classes under aokp package
11 : Fix reference in Phablet NavBar layout

Change-Id: I002e58366984d3a728987aba09f6a52b76ee2c59
Signed-off-by: Zaphod <mwilson@acesappraisal.com>

Conflicts:

	packages/SystemUI/res/drawable-hdpi/ic_sysbar_back_ime.png
	packages/SystemUI/res/drawable-mdpi/ic_sysbar_back_ime.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_back_ime.png
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	policy/src/com/android/internal/policy/impl/GlobalActions.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java

Conflicts:

	core/java/android/provider/Settings.java
	core/res/res/values/symbols.xml
	packages/SystemUI/src/com/android/systemui/statusbar/NavigationBarView.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/ExtensibleKeyButtonView.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java