Revert "Revert:Lockscreen: See through (2/2)"

This reverts commit 74313e8a7ac6728f602ce546135ecba762f9b2be.
[2/2] Settings: Wakelock Blocker

Change-Id: Ic4dc068a9e8f6d1b625d5d13cef404dab3711064

Conflicts:
	res/values/cr_strings.xml

Conflicts:
	res/values/cr_strings.xml
	res/xml/settings_headers.xml