Settings: Date and Time - We want consistence...change from CheckBoxPreference to SwitchPreference

    Google changed it on all main settings. It does not make sense that on system settings
    the old CheckBoxes are still used.

    This commit changes all CheckBoxes in Date and Time settings to Switches

    Same needs to be done for Developer Settings

    Change-Id: I5c1f34b813ede998e4fb9dab2a1184a6db51bf79

Change-Id: I1eecfa0e10054e3acf1d4afd58a31f2f35ab476f
Settings: Add per app controls for LP keyguard notifications (2/2)

Nice done by google but the UX is a problem especially for ppl who are using a lot apps and just want
to see from important apps the notifications on the lockscreen.

This commit adds the ability to

- enable/disable per app the keyguard notification at all
- enable/disable per app ongoing notifications on the keyguard

We handle this over the app policy conf file like the other per app notification options

Change-Id: Ie4966f9048718c080571935796258625413f7344
Merge remote-tracking branch 'slim/lp5.0' into lp50s