Added fastsroll to the manage application screen so you don't need to scroll so much if you have alot of apps and want to go to the bottom of the list.

Change-Id: I96d892abf53a9da784ae1df056558d4fd3cf64f6
Settings: Add Recents Ram Bar

Change-Id: Ic379515a04d9a55774e01fe0f1d310e5869e0a1a

Conflicts:
	res/values/strings.xml
	res/xml/user_interface_settings.xml
	src/com/android/settings/slim/UserInterface.java
Settings: Recents RAM bar (2/2)

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

cheers

Change-Id: I6f79c253f6884dffc8bcb5e1b52421143f91e02d

Conflicts:
	AndroidManifest.xml
	res/values/arrays.xml
	res/xml/user_interface_settings.xml
	src/com/android/settings/Settings.java
	src/com/android/settings/slim/UserInterface.java