QuickSettings: UserTile: Open full contact page

QuickContact popup can only be used for phoning/messaging/emailing,
which doesn't make sense when you're opening your own contact.

Opening the full contact directly makes it easier to beam or share
with other (one less click)

Change-Id: I6b6002fd7ecccaf16f1e410c0c863989bf877711
KeyEvent: update comment

Change-Id: I1ea491e7e23670bf0ea83392710010b557803178