Framework : Lockscreen - Customizable shortcuts

Patchset 1 : Initial port
Patchset 2 : Disable magneticTargets
Patchset 3 : Disable firstOffset
Patchset 4-5 : Cherry pick 10.0 commits

---------------- Squashed Commits ------------------

Allow users to choose lockscreen shortcuts / icons :
	Phone - 1-5 targets
	Tablets - 1-8 targets

CM10 port
---------
Patchset 1-8: Initial port
Patchset 9  : Revert to CM9 drawables
Patchset 10 : Rebase

Change-Id: I9b163efeef8f47b1d21f7f61552ebe424049cfeb

Fix all upscaled lockscreen drawables and add a few

Several of the original CM9 drawables were upscaled
from a lower quality source. I rescaled some from the
originals and recreated the missing ones in vector
format plus added some new ones.

Change-Id: I112c35cf087daf0679a12bdad89258121dedeb0c

Lockscreen : Update camera availability check
Make the default availability of the target dependant on the
availability of a camera rather than the presense of a predefined resource.

Also update .Camera to .CameraLauncher since that is what we default too.

Change-Id: Ib3f06cc76fb7f7df20ec632051d5dbe754a9c69e

LockscreenShortcuts : Fix minor bugs

Fixes :

      - Inability to have contacts/direct dials..etc on lockscreen (http://goo.gl/BKEJs)
      - Multiple activities of same type on stack.

Change-Id: I6c2c3e1c87239267601d78eb38778d0388f4a41c

Lockscreen : Fix blank target highlight

Mismatched file/image.

Change-Id: I7cd898646124114a855d0fc1589251cbc6fc72fa

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Change-Id: I9b163efeef8f47b1d21f7f61552ebe424049cfeb

Conflicts:
	core/java/android/provider/Settings.java
	core/res/res/layout/keyguard_glow_pad_view.xml
	core/res/res/values/symbols.xml
	policy/src/com/android/internal/policy/impl/keyguard/KeyguardSelectorView.java