WIP Frameworks: Lockscreen custom wallpaper (1/2)

  - Color Fill
  - Custom Wallpaper
  - Default background
  - Alpha slider in color fill

patchset 2: rebased...move settings from Settings.Secure to Settings.System
            also don't set album art when transport is active

patchset 3: != mCustomBackground

patchset 4: fix image handling

patchset 5: remove unused import

Change-Id: I47ac785cd650bafe218cd9417b890c31e3a234cf
Revert "[1/3] base: allow disabling non intrusive incall ui"

This reverts commit a9bf3240220eaa12dd60eaac3450a10ddb15fb40.

Change-Id: I170982febc92f66122abf11d87b2161b4c40d447
Merge "Revert "[1/3] base: allow disabling non intrusive incall ui"" into kk4.4
fb: Incoming Call in Background (3/3)(Do Not Merge)

Before:https://app.box.com/s/0ndc00yby1jkf1yson2d

After:https://app.box.com/s/t230s7dl7uu02syg8q4p
      https://app.box.com/s/rjbie5exn285l1vt1z7i

To test this needs to be reverted:

http://review.gummyrom.com/#/c/1167/

Allows user to set that Incoming Call UI will remain in background
if screen is on. Instead, a notification is added to StatusBar, which
can be used to bring up the Incoming Call UI. Ringtone and vibration
still occur as per system settings.

This has the same effect as apps marked as "immersive". It prevents
the incoming call from backgrounding the current activity.

Change-Id: I1eb0ae6b10ba02c3f1df95265d26a6c61db74aab
Merge "WIP Frameworks: Lockscreen custom wallpaper (1/2)" into kk4.4
[2/2] Framework: instant led test

Adds support a new notification extra boolean
EXTRA_FORCE_SHOW_LIGHTS.  Used by settings
notification light picker to force lights on
when the screen is on.

Change-Id: If0a42d32b28fe8c02ef5f7dd148db7eb478fac17
Merge branch 'kk4.4' of https://github.com/TEAM-Gummy/android_frameworks_base into kk4.4