Settings: Fix isPackageInstalled logic.

    - If package is null, isPackageInstalled returned true.
    - Return false if null, always.
    - PS2: Fix codestyle
Change-Id: If2bf41e4c9520195d56e327a447d7085daab3154
Hide "Volume adjustment sound" option on non-voice capable devices

On non-voice capable devices, there's no sound when adjusting the
notification volume. Remove the obsolete option from Settings.

Change-Id: I3fc9ef737eb55d591a4ecc7d79ee60b9151395b5
Settings : Launch only contacts picker for blacklist entry

Change-Id: I266d1ad7f1aab745728b33490268cb197188f2b3
Settings: Modify AOSP JA translation

usage_type_on_time is supposed to the cell standby use time(使用時間),
but it says screen use time(点灯時間) in Japanese. It should be corrected.

Change-Id: Ic9b7f61a054d09cf7944d6d37f70c8dbb294c095
Settings: Remove lockscreen options from security.

  - Create a separate fragment for Lockscreen settings
  - Move App Security up in Security Settings
  - General clean up

Change-Id: I4dc20942b87c2446c7e798e28f7e475efebaddb8
Settings: Fix missing preference when lockscreen disabled.

    - Introduced in security settings reshuffle.

Change-Id: I1b6b608682208396d5efc54fd985652f65e86ffc
security settings cleanups, move wakelock blocker to top, update gradle

Change-Id: Id4b0fd426f73345b3eea594652236b47ba5a8be3
further cleanup of LockscreenSecuritySettings

*) remove owner information, it can be already found at Security Settings
*) always load delay preferences if lockscreen is enabled
*) remove power button instantly locks, as the same can be achieved with
the listpreference of the load delay preferences
*) remove isCmSecurity check. we do not need it as its a seperate fragment
*) remove unused variables

Change-Id: Id0229a313231af734ecd7e3a7dbae851c07ea8d4
Merge remote-tracking branch 'upstream/android-4.4' into android-4.4