WallpaperCropper: respect max wallpaper width

Some devices with high resolution screen only support 2048px wide
wallpaper (used to be fixed in I5b25bd931db0b2610e260921f28b92d8b0966aa6)

Pre-KitKat this works as follows:

- Launcher calls WallpaperManager.suggestDesiredDimensions and we
  limit the maximum size in that function
- The wallpaper setting application calls WallpaperManager
  .getDesiredMinimumWidth and respects that size

However, after KitKat, it is all broken because WallpaperCropper
now calculate its own dimension and does respect the value set by
getDesiredMinimumWidth (and it calls suggestDesiredDimensions,
which is supposed to be reserved for Launchers!)

Attempting to restore wallpaper setting by:

- Having WallpaperCropper respect config_wallpaperMaxWidth
- Having CMWallpaper (which copy pasted code from WallpaperCropper)
  respect getDesiredMinimumWidth
- For third party applications, if they respect getDesiredMinimumWidth,
  then they will work, but if they don't (i.e. uses WallpaperCropper's
  code), then there's nothing we can do.

Change-Id: Ib7da12a1c70befbeef2f305593d3841acbc45243
Themes: Only process themes that are applied during boot

Currently, the PackageManagerService will process all themes and
ensure their resources are compiled and available to the system.
This is highly inefficient and can bog the system down when booting.

This patch will only process the themes that are currently applied
durring boot and lets the ThemeService take care of queuing up the
others for processing.   This reduces boot time considerably,
especially when the user has many themes installed.

Change-Id: I52168a1751ad3bfc458048dd1558ad71cc16317a

Conflicts:
	core/java/android/app/ApplicationPackageManager.java
	core/java/android/content/pm/IPackageManager.aidl
	core/java/android/content/pm/PackageManager.java
	services/java/com/android/server/pm/PackageManagerService.java
	test-runner/src/android/test/mock/MockPackageManager.java
base: display live wallpaper settings instead of wallpaper picker

If the livewallpaper service declares and supports a settings activity, display it
instead of the wallparper picker in runnings apps details settings activity
(settings button)

Change-Id: I8db800cec4151ee5e6edddcea7a1bb5fb0528816
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>