GlowPadView : Re-enable magneticTargets

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

Change-Id: I523141f03566804888fde08a116f73ea62ca523e
Lockscreen Targets : Make multi-user compatible

Use getStringForUser instead of getString since the framework always run as root user (0)

Change-Id: Ibe8b69cf4c4ad123ca8e68cd8fadcb7eb467b5be
Lockscreen Targets: Icon Revamp

Adjust the size of custom app icons and resize and round the corners
of gallery icons for a more uniform look.

Before http://imgur.com/cTOqdwX

After http://imgur.com/EKAeFiw

Change-Id: Ibcca275eb0ae946775773a8c8217b6508da10e5b
Re-implement magnetic targets

This reverts commit 8d037a2ded2edafc2ecafad2a8d799cb3f82f629.

Change-Id: I26da0ab2c9d65828bf9cd16a82dad7d1c50dc891