Revert "Remove Lockscreen Curtain"

This reverts commit b4188032303cb8d07922d6976c4d0a98edd6fc53.
Revert "Lockscreen alpha value set to Zero"

This reverts commit e0ed7993d16ffd10bc36f9eeb5f78d810deb00b1.
Revert "Lockscreen see through (1/2)"

This reverts commit 351ad8424f1e922ac7b82b41b0da903cc742dd7a.
Revert "allow widgets to minimize in extended desktop"

This reverts commit a4006221e417cb48cd4880c4f3775a370404a476.
Revert "Policy: fix keyguard statusbar showing while in ext desktop, fixes it in"

This reverts commit ce4b80d269140b0aa88f83ae215fae7aebdf55ed.
Lockscreen Transparant (1/2)

This reverts commit d1aaeacfc0c3980010275bd2ed973a18561a0c31.