fb: do not block home button if incoming call is a background call

The user want to navigate ahead if it is a call in background.
So we allow it.

Change-Id: If40b8abba05b600191bfc1403f197e624fd7a360
On-The-Spot: Add information on how to reset preferences

After the first On-The-Spot preference dialog is answered with yes or no
a dialog will show up that shows how you can reset the preferences.

Change-Id: I0fb010db66ee8a97ab4dbe30a48edc657991ab6d
Signed-off-by: kajuten <julian.kaltenhofer@gmail.com>

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

Conflicts:
	core/java/android/provider/Settings.java
QS: Make CameraTile respect locale changes for the label.

Change-Id: Id4be230c443263b4185e5b4af6e8df6805a7aac5

Conflicts:
	packages/SystemUI/src/com/android/systemui/quicksettings/CameraTile.java
.....