Cleanup Security/Privacy settings code

Cleanup:
* Mismerges
* Code style
* Copyright headers
* File permissions

Change-Id: I6c34586680f0ccbaa613a0acfee366113c32a81c
Settings: use CMHW serial number

See http://review.cyanogenmod.org/57164

Change-Id: If328ca7b487435b88246d1f8c47b04770183f09e
[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>
Author: Danny Baumann <dannybaumann@web.de>
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: I4d6f37b3923eb9bc98d67101d6f0ef481a427682
profiles: Make the actions wizard buttons show up

The "back" and "finish" buttons weren't being shown at all in this
layout, which made it impossible to add profiles.

Change-Id: Ib6b52430c25ed7445ca8e3c1249b7fccd21c3c69
profiles: Make the floating action button more material-y

This makes the FAB look consistent with other fabs across the system,
it adds animated elevation, changes the icon color to white but mainly
fixes the size which was completly wrong.

Change-Id: Ib8b2d54869a6a10958c24bcc0fab1224fd07fadd
TrustedCredentials: Don't crash when the activity is paused

If you press Settings -> Security -> Trusted Credentials, then press
 back before the loading finishes, the loader async task will still
try to dereference the activity which will cause an NPE.

This patch fixes that by getting and holding a reference to the
context in the beggining and bailing early if it is null.

Change-Id: Ie03734d5f184821df5d8729fc4a16eb51cdeebf5