Overscroll effects configuration (2/2)

Smooth~ scrolling effect
You can choose the scrolling effect!

Dokdo Project - neighbors28

Signed-off-by: anerik <anerikgames@gmail.com>

Conflicts:
	res/values/dokdo_arrays.xml
	res/values/dokdo_strings.xml
	res/xml/system_ui_settings.xml
	src/com/android/settings/cyanogenmod/SystemUiSettings.java