Rollback CM's lockscreen shortcuts

Revert "Fix indention."

This reverts commit 2bdfbff849377a38c9440a9aa24a4c276df4b6c5.

Revert "Framework : Lockscreen - Customizable shortcuts"

This reverts commit e1735f0abfe1794c7d64011054bf20ba7545f8c1.

Change-Id: I3ee466b4f81dcf53c637ca8f9f00f20fe6164062
Frameworks: Port Lockscreen Targets and Shortcuts to SlimKat

First thanks to PA and CM which gave us partly code and some ideas.
Still some parts of the original implementation are/were buggy as well
we needed to ehance it.

Whatever the new Slim version is now ready and seems to be completly bug
free.

- Configurable lockscreen targets...on tablets 8 on phone either 5 or 8
- configurable lockscreen shortcuts only on phones...up to 5 shortcuts
- Centralazing some methods....using now then rounded corner on custom
  images systemwide...means on all other shorcut features we have
- multiDpi compatible
- new settings logic
- instance handling of all dialogs like we do on all other places
  way nicer this way
- tons of fixes

Change-Id: Ib3752204aa6876bd5b9d619c002df78d8e4bd109