Themes: Handle apps using "original-package" tag

Before this patch the themes code assumed the pkgName from PackageInfo was equal to the
manifest value. This is not the case however for upgraded system apps that have gone
through a pkg-name change. For example, Trebuchet was "com.android.launcher3" and now
it is "com.cyanogenmod.trebuchet". If the device had wiped data then PM would use the new
pkg-name, but if the system apps were being upgraded then PM would use the old name which is
now different from the manifest name.

Change-Id: Ie7eb1b4e17899d1055535dc890d4f7a7bca9a98a
Cleanup app->{theme1,theme2...} mapping on uninstall

Change-Id: I24b43e8817db1927d5b43fcf7ad3340269d046ea
Themes: remove unused code

Change-Id: I793ff3e8ec9fe94f9e455c27a655e5174230e293
Themes: Delete icon resources during uninstall

Change-Id: Icf247642f9d246c8826f3394f873e4b434ad2b3f
Themes: Add '|' delimited list of components to broadcast

Change-Id: I742dcb0f502b6089dee584a92a3792016f2a9799
Make theme change broadcast a protected broadcast.

Change-Id: I1b85e12f247d6ba01d20068fe65b297e6b5f786c
Change defaultDreams to com.android namespace

Change-Id: Ia4a49f4cb2bbfc249ff93c5ea240ed89065bb7b2
Merge "Change defaultDreams to com.android namespace" into pac-4.4
Merge remote-tracking branch 'pac/pac-4.4' into pac-4.4