WIP Settings: Lockscreen custom wallpaper (2/2)

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

patchset 2: rebased...move settings strings to Settings.System
            also set right value for colorpicker preview

patchset 3: fix image handling based on idea borrowed from AOKP, also remove lockscreen alpha settings

patchset 4: remove unused file and import

Change-Id: I7d02feed71e57e6af07e19f50e18a09d03f1dfcc
Adding myself to dev list with link to twitter

Change-Id: I5bbd66a3be7dc0ed259579e5f6eb364a8110ffee
[1/2] Settings: instant led test

Show LED color in realtime when configuring
notification colors.

Requires framework patch for notification
extra EXTRA_FORCE_SHOW_LIGHTS.

Change-Id: Ic7858d79cb2351c407afd547b33652a9e04ef1b9
Settings LightSettingsDialog: update led on text change

Change-Id: I135f37829b9b4fb2166afac9d9531b76a62f3ef7
Merge branch 'kk4.4' of https://github.com/TEAM-Gummy/android_packages_apps_Settings into kk4.4

Conflicts:
	res/values/gummy_arrays.xml
	res/values/gummy_strings.xml