Framework: Recents RAM bar (1/2)
due that the old rambar was resource consuming and as the settings rambar not really
right in showing the truth of real RAM usage in android, I decided to go new ways.

This commit changes our rambar (or better add a total new one) in following points:

- we do not use any longer ther permanent observed RunningState machine
- instead we read out /proc/meminfo (thanks steven for that idea)
- rambar shows now the real memory usage
- ppl have the possibility to show applications, cache and other ram usage as they like
- deeper explanations I add how android mem managment works.
- color picker for all rambar states
- reset to default
- updates only on actions on recents so that it is making sense
- and a lot other

Inside as well:
Fix Ram Bar calculating
seem realy my fever last days made me to a bad programmer lol
fix for wrong calculated other value
fixes also sometimes weird negative views

Recents set nicer intent flags for rambar click action

---------------------------------------------------------

cheers

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/res/values/strings.xml
	packages/SystemUI/src/com/android/systemui/recent/RecentsPanelView.java

Change-Id: I47451cf6fa451d6760e2d42fcb649b27397ccee4