Frameworks: slimrecents: call app details screen correctly

So feedback shows that we only have 2 bugs. For the one patch is up. The other
one is fixed here.

two problems

1. Longpress opened the detail screen twice and wrong

2. It shows up in the task list which it should not. Going inline
   with the AOSP implementation of it.

use TaskStackBuilder to call it proper with our animation on top.

Change-Id: I18ba0a23ee91fe259143567d157bf24a72e1036a

Conflicts:
	packages/SystemUI/src/com/android/systemui/slimrecent/RecentPanelView.java