AbsListView: add option to disable scrolling cache (1/2)

Ported from gingerbread with logging removed

scrolling cache (discard?) can cause performance lag due to GC
allow user to enable/disable/force scrolling cache on the fly
inspired by AndroidON, http://forum.xda-developers.com/showthread.php?t=1411317

Change-Id: Ibced70a11831c0f188bbc82f3c3cedeeb44ac689
Port lockscreen info-lines from ICS (1/2)

- Restructured lockscreen layout: keyguard_screen_info.xml contains the informational elements, this should be included on each layout (except in sw600dp)
- Weather: added back text option
- Calendar (upcoming events): added back w/ all of the old features
- Cleaned up lots of code

PS2: Rebased, amended color-switcher functions
PS3: Fix disappearing weather&calendar lines after rotation
PS4: change clock top margin back to 20dip
PS5: add back weatherpanel/text to statusbar
PS6: fix center layout of glowpad if user lowered the factory DPI
PS7: fix center for real
PS8: add back onclicklistener to statusbar weatherpanel (refresh/customapp)
PS9: fix NPE in CalendarEntry (b/c of colors)

I'd say it's ready to merge now.

Change-Id: I43429db7a85d22d41f422c189f0383c1f1143ef9

Conflicts:
	core/java/android/provider/Settings.java
	core/res/res/values/public.xml
	packages/SystemUI/res/values/dimens.xml
	packages/SystemUI/res/values/strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
Weather panel actions

Clock and date short actions were depended on longclick nothing
fixed that...

Current set up is lockscreen weather can only update weather

Moved actions to phonestatusbar so we can apply new actions to the whole
panel and not just the conditions view.

3 options for both long click and short click
1) nothing
2) update weather
3) Custom app

Still need to clean up the old weather panel

Would like to maybe add vibrate or a toast to let user know the
panel is updating.

Change-Id: Ic33df820a74ee2cec54b67ba407f6b5d62020fd0

Conflicts:
	core/res/res/values/strings.xml
	packages/SystemUI/src/com/android/systemui/aokp/AwesomeAction.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
Merge Derp

Change-Id: I03fb73e4eb9dd8f1d5bb863aa1d2fbf74db301cb