Navigation bar Quick launch shortcuts

Conflicts:
	core/java/android/provider/Settings.java
	core/res/res/values/symbols.xml

Signed-off-by: Paul Beeler <sparksco@gmail.com>

Fix build
Explain why the frameworks/base DateUtilsTest isn't merged with CTS' DateUtilsTest.

Change-Id: Icbdb4e9133a9ae1c1b37f822367e1ac86e9e36cb
Improve the Resource.getQuantityString/getQuantityText documentation.

Natural languages differ so much and in such odd ways that you can't
use getQuantityString as an "if" statement. It's really just for grammaticality.
This is explained well in
http://developer.android.com/guide/topics/resources/string-resource.html#Plurals
but we need to make more of an effort to motivate people to read that, and to
at least get the most important point across if they don't read it.

Change-Id: I549b9f3563462c45f2dea34c558185e0714127cd
update preloaded-classes

Remove some preloaded-classes and fix typo for deleting log messages
as the followings during booting.

W/Zygote  (  163): Class not found for preloading: android.bluetooth.
BluetoothAudioGateway
W/Zygote  (  163): Class not found for preloading: android.bluetooth.
HeadsetBase
W/Zygote  (  163): Class not found for preloading: undroid.content.Ab
stractThreadedSyncAdapter$SyncThread

Change-Id: Id02e0cccaeb150f48e12d67b2d691df828842e4c