Themes: Let ThemeService handle all theme processing [1/3]

Only themes that are applied will be processed inside of the
PackageManagerService, all others will be sent off to the
ThemeService.

Change-Id: I5f2ec628e1d22a05accc6727efb0c1387455f82f
(cherry picked from commit 29d04650e06b4e248e6600b1d28f83d1ec6ff5aa)
Automatic translation import

Change-Id: Ib1cdb754cded8a9e2fbe319199e1905bd7971674
(cherry picked from commit cca185b1a932277b8eae2c385579cdd8f384e8d3)
localgroups: fix null pointer access

Change-Id: I2a5805fc00903bc427e62a924b06e10a48d0ffe3
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
(cherry picked from commit 71d8745bd16f124f15cc1a93f0c8738701bc7442)
Keyguard: Save Italy

Being low on battery is bad enough, don't make those Italians
suffer from additional UI crashes.

Change-Id: Idb905a27fc107433595e4376f88deebe1bc0c3d8
(cherry picked from commit c315b3312f39862aa7bc52d4b033f7f7b855ca78)