Changes

See #{{bug|5260}}: [http://www.gramps-project.org/bugs/view.php?id=5260 Main parents family needs to be the first on the list; it would be better if it could be in any position]

See also #{{bug|5038}}: [http://www.gramps-project.org/bugs/view.php?id=5038 Logic behind active family object ?]