ROMControl: Fixes / Clarity / Consistency

Changes:
    Installer:
       -Summary for disabled Prefs
       -Convert unused booleans to voids
    SPenGestures:
       -Summary for disabled Prefs
    Lockscreen:
       -No more hiding preferences,
            opt for a scrollview instead
    GeneralUI:
       -Summary for disabled Prefs
    Navbar:
       -Summary for disabled Prefs
    Powermenu:
       -Remove ugly summary && string edit
    Sound:
       -Summary for disabled Prefs
       -Abandon "isStarted logic" from FlipService
           use "onCreate" instead to avoid multiple
           listeners
       -Stopservice if no applicable settings enabled
    Clock:
       -Remove Protekk Option (Broken anyway)
       -Summary for disabled Prefs
    Signal:
       -Summary for disabled Prefs
    Toggles:
       -Summary for disabled Prefs
       -Fix RibbonToggles enabling their toggle
           settings if the ribbon isn't on
    Strings:
       -Minor edits

    *** jbmr2 bringup

Change-Id: I16e5201e43c86ac050ab01f50df3c25fd4725821

Conflicts:
	res/layout/lockscreen_targets.xml
	res/values/strings.xml