settings: Privacy Guard support

* Add toggle to InstalledAppDetails to enable/disable privacy guard flag on
   a per-application basis.
* Add toggle to enable privacy guard by default for applications.
Fix Setting->Display always force close issue

CTS's AdminTest will change the display timeout to 5 seconds.
It will cause Setting->Display 100% force close. It has been reported in
http://code.google.com/p/android/issues/detail?id=27026 . This patch is
for solving this issue.

Change-Id: Icf4061023f040ee164d161b9db717acbc9697124
use date from 1970-01-01 to 2037-12-31 in DatePickerDialog

In case of using DatePickerDialog, user could select any date
before 1970-01-01. However, the system clock cannot be set to
a date before 1970-01-01.
As a result, user couldn't select date before 1970-01-01.
So, use date from 1970-01-01 to 2037-12-31 of DatePickerDialog.

Steps to reproduce:
1. Settings -> Date & time
2. uncheck Automatic date & time
3. Set Date
4. choose any date before 1970 and Done

Change-Id: I075b3fcaa86df1c314c85dd3dd85474a28b8c637
Clamp date setting for the SetupWizard as well as Settings.

We fixed this for Settings in 7ccfa0614caeba8eba5d3040a90541a24fa1e6c9,
but @sonymobile.com point out that it's still broken for SetupWizard.

Change-Id: I59348200105246f3ed7c0892e5f19b901d3e95ac
privacy guard: Fix crash when uninstalling an app

 * Don't try to update the privacy guard flag while refreshing after an
   uninstall since the PM will throw an exception at us.

Change-Id: Idadb99fefc2861e871f6206b08c844dda742fa68
Add 2G/3G option to profile connections (2/2)

Only show option when network type is GSM not CDMA
fix mobile network and apn settings