This means that we are going to use the same branch name for the
dependencies as the branch of the repository under test.

If we are testing the 'stable' branch, all dependencies will point
to the 'stable' branch as well.

Change-Id: Ia7a118539e3e5265cd0bdca7800e48cb6fc534d0
Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>