App sidebar: floating window

long click to launch app in floating window

Change-Id: I9b5df1cceb2314ee0f8727136c007c481346a264
App sidebar: some adjustments
- Cleanup
- fix disappearing appbar on changing appbar position
- may fix endless FC on changing appbar contents

Change-Id: I2e94290dc128447f0da8937eb5dc0ed10296a155

Conflicts:

	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
App sidebar: notify if app is not installed

better than force close

Change-Id: I9eebe1a3a4be2dad16ed9a8cff9c0694900d833d

Conflicts:
	packages/SystemUI/res/values/cr_strings.xml
edit xml files for app bar
remove duplicate