Fix one NPE in tethering setting

Once we not declare BT feature, go Setting->more->tethering
will trigger this NPE.
Cherry-picked from AOSP: https://android-review.googlesource.com/#/c/63695/

Change-Id: I4736e7bade261475acda74e26250a81452018ffa
Signed-off-by: Jianzheng Zhou <jianzheng.zhou@freescale.com>
Fix null pointer exceptions in NetworkPolicyEditor

This upload fixes a null pointer exception issue.
After this fix the modified methods return
their corresponding default values instead of null.
Cherry-picked from AOSP: https://android-review.googlesource.com/#/c/62248/

Change-Id: Idb94f8b808b8dd18be5e3fc92cc5560ce0f81c4f
Show memory full text only for internal storage

When the internal memory is full, a warning text is shown
in Settings/Storage. This warning was displayed for all
types of memory (internal/primary, sd card and usb storage)
even though it was only referring to the primary memory.
With this fix, it is only shown for the primary memory.

Change-Id: I35ad4b0b45c6752ddc9d7166495435b27fd4a170
[1/2] Settings AppOps: Forward port wifi/bluetooth/mobile/wakeup ops

    Squash of:

    Author: Shashank Mittal <mittals@codeaurora.org>
    Date:   Thu Sep 5 19:01:47 2013 -0700
    AppOps: Add more operations in app ops settings.
    Add following operations in app ops settings.
    -- Wifi enable/disable
    -- Bluetooth enable/disable
    -- Mobile data enable/disable
    Change-Id: I32183d77b88c326168557444a445765b5a69de6f

    Author: Sam Mortimer <sam@mortimer.me.uk>
    Date:   Mon Sep 30 23:10:35 2013 -0700
    [1/2] AppOps: Add alarm wakeup op
    Change-Id: Ic739519cb9df9d2c67d65e3572a119b4d55145f0

Change-Id: Iacfbf6abccdda65afc3b7b83bfc03b30d94afd77
[1/2] Settings AppOps: show/hide app type and allow/deny counters

    Squash of:

    Author: Sam Mortimer <sam@mortimer.me.uk>
    Date:   Thu Oct 3 13:51:31 2013 -0700
    AppOps: menu options to show/hide user and system apps
    Change-Id: Ia55364c361db949a891e4b53a757ee4dff519eb6

    Author: Sam Mortimer <sam@mortimer.me.uk>
    Date:   Wed Oct 2 22:24:14 2013 -0700
    [1/2] AppOps: Show allowed/ignored counts
    Change-Id: Ia27737155c33e934df9a2a1fcff88379240fd096

    Author: Sam Mortimer <sam@mortimer.me.uk>
    Date:   Sun Dec 1 21:39:07 2013 -0800
    AppOps: only apply app type filters to summary screen
      *) If buildState() is called for a single package, do
         not apply hide user/system app filters.
      *) Fixes show detail display when called via
         long press in privacyguard and an AppOp hide
         filter is ticked.
    Change-Id: If31d094fb989836ab6829daeefe820695032c0ed

Change-Id: Ia55364c361db949a891e4b53a757ee4dff519eb6
[1/2] Settings: AppOps: Add bootup template

This template lists all the sevices and apps that auto start on bootup.

User can use this template to control list of auto start applications.

Change-Id: Ibf03d7df0037c87eb2ef3ca48a34ef46a103b4d7
'When to daydream' dialog does not follow the JB dialog design guide

The dialog is a single selection popup and according to the
dialogs design guide the popup should close when the user
has make his/her choice, but in this case it does not.

Change-Id: Iac6bc19146a88236d3253d2d846212ce09b4925b