Themes: Build icon cache when applying icons

The theme service will schedule building of the icon cache when
an icon pack is applied.  This will allow the icon cache to be
populated immediately after icons are applied rather than build
it up as icons are requested.

Change-Id: I453eda5f6298ff79e22827c622a0eddcab9c721d
Themes: Pass resource IDs instead of bitmaps [1/2]

Rather than passing around bitmaps in the ComposedIconInfo we
can pass the resource IDs associated with each of the components
and retrieve those drawables when composing the icon.

Change-Id: If855e60e505571f25316e6728e423fbee62c32d3
Themes: Allow clearing the wallpaper and ls wallpaper

By providing an empty string for the MODS_LAUNCHER and
MODS_LOCKSCREEN components, the theme service will clear out any
existing wallpaper the user had set.  This provides the same
functionality as if the user was picking "No wallpaper" from the
picker.

Change-Id: I0c349ad4afa2bcef2c302105315709786510c0aa
Themes: setUserRequired(false) when updating audibles

This prevents the following exception
F/Environment(18007): Path requests must specify a user by using UserEnvironment
F/Environment(18007): java.lang.Throwable
F/Environment(18007):   at android.os.Environment.throwIfUserRequired(Environment.java:787)

Change-Id: Ic6ac7537079ed27912c40683c877e05992b708e9
Merge "Themes: Pass resource IDs instead of bitmaps [1/2]" into kitkat
Merge "Themes: Allow clearing the wallpaper and ls wallpaper" into kitkat
Merge "Themes: setUserRequired(false) when updating audibles" into kitkat
Fix ressource leak in getFileCrC

Change-Id: If8a63fa355664d360aab6ecba92c82cd56b745b8
PowerManager : Make proximity check opt-in

Change-Id: I7cf64a82530da2e655018e43683ba7a5584d54f8

Conflicts:
	core/res/res/values/config.xml
	core/res/res/values/symbols.xml
	services/java/com/android/server/power/PowerManagerService.java
Merge "Fix ressource leak in getFileCrC" into kitkat
Merge "PowerManager : Make proximity check opt-in" into kitkat
Merge remote-tracking branch 'pa/kitkat' into kitkat

Conflicts:
	core/res/res/values/symbols.xml
	services/java/com/android/server/power/PowerManagerService.java
Merge remote-tracking branch 'upstream/kitkat' into kitkat