Frameworks: bring back all lockscreen Widget Settings

this commits brings back adapted versions for 4.4:

- enable permanent maximized widgets
- allow carousel view
- disable camera widget
- disable usibility hints
- longpress lockhandle unlocks screen

cheers gmillz and kufi

Change-Id: Idaca3d770a620c5f07ea389842a680eb7e55b601

Conflicts:

	packages/Keyguard/src/com/android/keyguard/KeyguardHostView.java