Revert "Lockscreen: Add back lockscreen wallpaper (1/2)"

This reverts commit c355399b5c3c5d62996397003cf905ef8f78a147.
Revert "Lockscreen Transparant (1/2)"

This reverts commit 4c9f3876655774f0e20884ab0586dc0c3c95083f.

Conflicts:
	policy/src/com/android/internal/policy/impl/keyguard/KeyguardViewManager.java

Change-Id: I80779ddea72ffaaad04bec9828394ff00f76f5b2
Port CM LockScreen (1/2)

Change-Id: Ic3c03280c83027593ad8eff9f4335f0f15781da9
Revert "Sensors could be disabled by any application"

This reverts commit a71e867f747a1c27a2658513e85229f8c683dc35.
Fix Quiet Hours not muting notification sounds

4.2.2 touched the NotificationManager service, and some logic went missing in the merge it seems.
This should take care of it.

Change-Id: Ib3b88c83d2936871fbe25f1acbd10fd60c577944