Lockscreen Notifications: add back dynamic width as an option (1/2)

Conflicts:
	core/java/android/provider/Settings.java
	packages/Keyguard/res/values/config.xml
	packages/Keyguard/src/com/android/keyguard/NotificationHostView.java
Gesture Lockscreen [1/2]

Change-Id: I370d40d47459d64adf709d4caee1c27c75922cfd

Conflicts:
	core/java/android/provider/Settings.java
	core/java/com/android/internal/widget/LockPatternUtils.java
	packages/Keyguard/res/values/liquid_strings.xml