Hide QS Panel Toggle [2/2]

Patchset 2
- some smalle corrections
- change of logic
- some cosmetic fixes

cheers

Change-Id: I6a5d4d8420e5337cc9636482e21a048d496694ce

Conflicts:
	res/values/cm_strings.xml
	res/xml/quick_settings_panel_settings.xml
	src/com/android/settings/cyanogenmod/NotificationDrawer.java
	src/com/android/settings/cyanogenmod/QuickSettings.java