* In Person, add event_ref_list to get_citation_child_list (therefore it is no longer needed in get_handle_referents)
* Similarly in Family, add event_ref_list to get_citation_child_list
* Enhance upgrade to add upgrade of event_ref_list for person and family
* Add has_citation_reference, replace_citation_references and remove_citation_references to EventRef
* Change name of remove_citation_refs to remove_citation_references to be consistent with has_citation_reference (singular) and replace_citation_references
Fix editcitation because it was displaying the wrong privacy button for sources.
Also remove FIXME for editcitation for db signal connect, because comment explains why it is not needed.
svn: r18469