[3/3] Settings: Add AOSP Dialer check

Disable increasing ringtone option if Google dialer is used

Change-Id: I46a129e24bda51ffb9aa0d39d203523b9e00ef10
Fix elapsed time formatting.

We should extend DateUtils to provide this kind of elapsed time
formatting via icu4c, but for now let's at least fix our
arithmetic.

Bug: https://code.google.com/p/android/issues/detail?id=61479
Change-Id: I6c087dbb9fdbff0a21d9243d239126fee180454c
[1/2] Setting: Lockscreen maximized widgets

      Enable lockscreen widgets to be expanded by default.

      PA modifications to commit:
          Allow for long press unlock.
          Enable checkbox only if "Enable Widgets" is selected
          Remove preference is device is a tablet (already expanded)

PS2: Actually remove preference from tablets
PS3: Show option in all security categories
     (credit Cristiano Matos)
PS4: Rebase

Change-Id: I3d52b752415f48e5468db0804be5c2ff93a71e31

Conflicts:
	res/values/pa_strings.xml