Various enhancements:

* Modified Event object to include references to Citations
* Implemented database upgrade for Events (upgrade for Media had already been done)
* Enhanced database upgrade to do backlinks
* Modified Media object to remove sourceref
* Implemented citations bottombar gramplet
* Some minor fixes and improvements

svn: r18054

src/plugins/gramplet/bottombar.gpr.py

@@ -470,6 +470,76 @@ register(GRAMPLET,
          navtypes=["Media"],
          )
 
+register(GRAMPLET, 
+         id="Person Citations", 
+         name=_("Person Citations"), 
+         description = _("Gramplet showing the citations for a person"),
+         version="1.0.0",
+         gramps_target_version="3.4",
+         status = STABLE,
+         fname="Citations.py",
+         height=200,
+         gramplet = 'PersonCitations',
+         gramplet_title=_("Citations"),
+         navtypes=["Person"],
+         )
+
+register(GRAMPLET, 
+         id="Event Citations", 
+         name=_("Event Citations"), 
+         description = _("Gramplet showing the citations for an event"),
+         version="1.0.0",
+         gramps_target_version="3.4",
+         status = STABLE,
+         fname="Citations.py",
+         height=200,
+         gramplet = 'EventCitations',
+         gramplet_title=_("Citations"),
+         navtypes=["Event"],
+         )
+
+register(GRAMPLET, 
+         id="Family Citations", 
+         name=_("Family Citations"), 
+         description = _("Gramplet showing the citations for a family"),
+         version="1.0.0",
+         gramps_target_version="3.4",
+         status = STABLE,
+         fname="Citations.py",
+         height=200,
+         gramplet = 'FamilyCitations',
+         gramplet_title=_("Citations"),
+         navtypes=["Family"],
+         )
+
+register(GRAMPLET, 
+         id="Place Citations", 
+         name=_("Place Citations"), 
+         description = _("Gramplet showing the citations for a place"),
+         version="1.0.0",
+         gramps_target_version="3.4",
+         status = STABLE,
+         fname="Citations.py",
+         height=200,
+         gramplet = 'PlaceCitations',
+         gramplet_title=_("Citations"),
+         navtypes=["Place"],
+         )
+
+register(GRAMPLET, 
+         id="Media Citations", 
+         name=_("Media Citations"), 
+         description = _("Gramplet showing the citations for a media object"),
+         version="1.0.0",
+         gramps_target_version="3.4",
+         status = STABLE,
+         fname="Citations.py",
+         height=200,
+         gramplet = 'MediaCitations',
+         gramplet_title=_("Citations"),
+         navtypes=["Media"],
+         )
+
 register(GRAMPLET, 
          id="Person Children", 
          name=_("Person Children"),