Update to viewDirective support non-child Dom element

The current implementation force you to have the ui-view in a parent -> child relationship with your Dom structure. This was problematic for me as the parent view was receiving some CSS treatment ( 3D Transform ) that I didn't want the child-view to suffer from. Here is my experiment with the patch [Demo](http://dewmap.com/experiment/three-angular-02/index.html#/) Thank you for your hard work.