lockscreen customization

lockscreen targets
magnetic ring (can scroll off anywhere like stock JB4.2)
add option to start widgets maximized/minimized
add option to show/disable widget tray hints on the sides

Squashed commit of the following:

commit dcc7c4e232dbdd77aabd8f2f52c5bd62304f4f0b
Author: Danesh Mondegarian <daneshm90@gmail.com>
Date:   Wed Dec 12 00:08:14 2012 -0500

    GlowPadView : Re-enable magneticTargets

    Re-enable magneticTargets and add logic to make it
    compatible with lockscreen shortcuts.

    Change-Id: I523141f03566804888fde08a116f73ea62ca523e

commit 2e0f49b407e987ed758472bec2baf1b708453e0a
Author: Danesh M <daneshm90@gmail.com>
Date:   Sun Jul 15 22:18:41 2012 -0400

    lockscreen targets

    Change-Id: I96f036b1e8c64e853548b18d9e2ed37002f4f963

Change-Id: I654e4bcae938bac30386200cd88454b3c3f1debd