SystemUI: Clean up old H+ drawables causing issues on manta

These drawables seem to be adapted to fit the old combined
tablet status bar. They mistakenly gets used on manta with
an oversized H+ drawable as a result.

Change-Id: Iefc0e997e31508ea98f10e5b399ce6569a4a3a44
Don't include flags in configuration change if their value hasn't changed.

This makes the check in updateFrom() match the logic in diff().

Change-Id: I3ab4e8460f7fbf985ef55b9514a8aa90d401d486
Fix up notification LED behaviour

- Commit 5713307e3d2eb457ba148df3683ad09733727506 (in ICS) attempted to
  fix the problem that the notification LED wasn't reenabled after
  turning off the screen again, but introduced another bug in the
  process: If another pending notification with LED at the time when the
  notification with the new magic flag introduced by that commit (which
  was used by phone and MMS apps) was active, the LED still wouldn't be
  turned on at screen off time. Also, this commit didn't handle locking
  correctly.
  This commit essentially reverts 5713307e and makes sure the LED is
  reevaluated when the screen is turned off again.

- This change also makes the assignment of the LED when multiple pending
  notifications want to use the LED more clear: The notification with
  highest priority gets the LED. If multiple notifications with same
  priority exist, the most recent one gets the LED.

JIRA:CYAN-652
Change-Id: I1df0b40cca2af7a08c240677d22d2a95097b7184
Frameworks: push recents preload time a bit up

seems to be that older hw key devices need a bit more
time to preload the recents because sometimes it ends
up in an empty recents screen. Time delay was
a bit to optimistic. Set it to android default
value for short press.

cheers

Change-Id: I40343a351ea968ae7dc663f2f36dbfef9dde93f5
Frameworks: move emergency call above power widget

AOSP has it always on top (without PW and as well on QS)
so put it on top as well when PW is active so that it
does not jump on animation is consistent

Change-Id: I7524a43f9ea5d45b1af94c677ad365cfcf72f89c
Framework: Always show settings button option for notification drawer (1/2)

This also fixes a bug where the settings button was not showing the proper pressed drawable
and fixes the transparency on the ic_notify_settings_normal drawable to match the rest of the
notification drawer assets.

Also removes longpress PW toggle setting since it now defaults to this.

Change-Id: I1b7624fd3278504a07c79daab00babcb5f7b37d1

Conflicts:
	core/java/android/provider/Settings.java