settings listview fixups:

rename active D and lockscreen N stuff to active notifications
move the feature to system_ui_xml & remove icon
move superuser back to where it was on 4.3
name notifications back to notification drawer
make controls preference category in vanir interface
make more fragment for misc features in vanir interface

PS2: add excluded apps for lockscreen notifications

Change-Id: I0551e12a8d9892f90a2181f3798d9afd8d5bfc60