Improve scrolling cache

    Scrolling cache helps make short scrolls/flings smooth but will
    cause stutter when long flings are made. This patch disables
    scrolling cache when long flings are made.

    This patch also fixes a related bug where scrolling cache will
    not be enabled properly when transitioning from flinging to scrolling.

    Patch Set 2: Calculate threshold based on maximum velocity (Sang Tae Park)

    Credits: Pawit Pornkitprasan

Change-Id: Iad52a35120212c871ffd35df6184aeb678ee44aa
SystemUI: PhoneStatusBarView: disable DEBUG_GESTURES

Change-Id: I3911c464d1f008ac2c96a1104761007fad41a3ae
Signed-off-by: Roman Birg <roman@cyngn.com>
SystemUI: add Settings.System toggle for quick-quick settings pulldown

Change-Id: I3c5dcfc23f39bf8be6c402e25f61e6f57a8add2c
Signed-off-by: Roman Birg <roman@cyngn.com>
SystemUI: double tap to sleep improvements

* Make it more reliable
* Add it to keyguard
* Add a content observer to not always query Settings.System on every
touch event

Change-Id: I292c4d9d9f810843590b7a9ec6e15b99ac44009d
Signed-off-by: Roman Birg <roman@cyngn.com>
[1/2] frameworks/base: Battery and Notification Lights

PS2: *) Add back a few missing pieces
     *) Do not clear light state in onPanelRevealed(),
        update lights on ACTION_SCREEN_ON instead

PS3: *) Wrap long lines
     *) Disable config_multiColorNotificationLed by default
     *) Revert config_defaultNotificationLedOff
        from 1000 back to AOSP default of 2000

PS4: *) Clear lights in onPanelRevealed() if
        keyguard is not active.

PS5: Coding style tuning

Pulled together from:

Author: DvTonder <david.vantonder@gmail.com>
Author: Ricardo Cerqueira <cyanogenmod@cerqueira.org>
Date:   Mon Nov 4 00:57:51 2013 +0000
Framework: Port CM9 features to CM10
Change-Id: Ibd63116df90b06f6ce6adb8a0343059bbb999bfb

Author: Pawit Pornkitprasan <p.pawit@gmail.com>
Date:   Sun Dec 8 15:24:41 2013 +0700
BatteryService: fix FC on boot until battery stat is present
updateLightsLocked() can be called from CM's added SettingsObserver
when battery stat is not present, causing an FC and a loop until
battery stat is present.
Change-Id: Ic4438fe50e98f1aa05ae1d0d26240bf9410fd92f

Author: Sam Mortimer <sam@mortimer.me.uk>
Date:   Tue Dec 31 16:22:05 2013 -0800
[2/2] Framework: instant led test
Adds support a new notification extra boolean
EXTRA_FORCE_SHOW_LIGHTS.  Used by settings
notification light picker to force lights on
when the screen is on.
Change-Id: If0a42d32b28fe8c02ef5f7dd148db7eb478fac17

Author: Danny Baumann <dannybaumann@web.de>
Date:   Wed Apr 24 11:09:55 2013 +0200
Allow creating custom dialogs in DialogPreference.
This allows creating non-AlertDialogs while still using the click and
state handling of DialogPreference.
Change-Id: I54fd7d6d6b9f6a49fef1ae95e0178838b3edfa56

Author: Michael Bestas <mikeioannina@gmail.com>
Date:   Mon Aug 18 04:56:28 2014 +0300
Add support for single color notification LED (1/2)
Change-Id: I367af77036da9e87c6dd0df552ce4c56d945a44d

Change-Id: I564fdb6ca6c5bbcf890afa4b9a2f9fa7bf8b9604

Conflicts:
	core/res/res/values/symbols.xml
	services/core/java/com/android/server/notification/NotificationManagerService.java