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
[1/2] Base: Pimp up ActiveDisplay

This is a squashed commit of the following:

- Active display: turn off display if device gets pocketed again
  https://github.com/CyanKang/android_frameworks_base/commit/3c139633e2cb341452320207e93fd10b480b65ed

- Active display: Option to change display timeout
  https://github.com/CyanKang/android_frameworks_base/commit/31a3c7dced93bda9501915ea87f28f8fd541b650

- Active display: Add some log output
  https://github.com/CyanKang/android_frameworks_base/commit/5be6bd59c27b0994b2459e4fe360d35c43349929

- Active display: Add threshold to proximity sensor
  https://github.com/CyanKang/android_frameworks_base/commit/fc4561bf1e78d656e37b6bc51340767e1ffa03f6

  Display will only be activated if the proximity sensor was covered for 5 seconds or more.

OmniGears part: https://gerrit.omnirom.org/#/c/2818/

Change-Id: Ib934157da195eb307c3c852de3d0549ad06bd004
[1/2] Base: Fix pimp up ActiveDisplay

This is a fix for the new features added with change: https://gerrit.omnirom.org/#/c/2819/

1. Fix the bug when Pocket mode is set to Notifications only and you
unlock your device with power key and if you put your hands over
proximity sensor the device will turn off (very annoying). The problem
was that mWakedByPocketMode it was put in wrong place.

2. Added an option in active display settings for "turn off display if
device gets pocketed again" (it's annoying for me, because i cover
the proximity very often).

3. Added an option in active display settings for proximity threshold.
I use this active display feature as an replacement for "sweep2wake",
and when my phone it's on the table, i just want to pass my hand over
it to show me the clock or notification (this was ok before the pimp up
commit), and now, you can choose how many seconds for proximity
threshold.

Practicaly, this commit fix one bug, and add settings for the
features added in 'pimp up' commit.

[2/2] part: https://gerrit.omnirom.org/#/c/3381/

Change-Id: I9e49ddb89002699714dcc3b3d2b1df87dc4bab4b
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