Testconfig: Adding QtDeclarative's v4 branch to ci

Initial version using same enforcings as QtDeclarative's dev branch.

Change-Id: I69d174c369e56a123ed7ad38c9b5d06032729b92
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>