Revert "Never load launcher on long press recents"

This reverts commit 000e6208807d4c426e2545546c5e7643f2fff0c7.
Revert "Long press recents to switch to last app"

This reverts commit 2c9829ba9423d1955110b69ceeca54e253ec92ac.
Custom actions on navbar recents long press (1/2)

For now 7 actions are possible
1 - none
2 - last app
3 - screenshot
4 - kill app
5 - notifications panel
6 - QS panel
7 - power menu

Thanks to @kufikugel for base and idea in SlimRoms navbar and navring customization

Change-Id: Ic96d8bb31025efd7260759709ddb8d9736c2619f