base: ActiveDisplay: fix for disappearing notification bar

What a derp
http://jira.omnirom.org/browse/OMNI-158
http://jira.omnirom.org/browse/OMNI-101

PS2
dont do it on secure lockscreens

PS4
check if lookscreen is enabled

Change-Id: Idf7fd7c15fcd87e2efb62f0a234e15f1df1921e8
Active display: Ability to turn off the screen, when a not clearable notification is present

Removing the last clearable notification in AD turns of the screen. But if there is a not clearable notification, there is no ability to turn it off directly.
This patch adds a power target on place of the 'clear notification' target of AD.

Change-Id: I807cca4c293ed732b441cfdcca50957b427809fa
Base: Fix ActiveDisplay problem

follow kitkat changes
fix ActiveDisplay never disabled after using turn off display option

Change-Id: I1d178875c2643e872da40cae9781313fca53a6a5