* src/AddMedia.py: relative path support

* src/AddrEdit.py: add DisplayTab support
* src/DdTargets.py: repository references support
* src/DisplayTabs.py: repository reference support
* src/EditMedia.py: save support
* src/EditSource.py: save support
* src/ImageSelect.py: remove unused stuff
* src/Sources.py: use object instead of gobject.TYPE_PYOBJECT
* src/Utils.py: relative path calculator
* src/ViewManager.py: change cwd to directory of the file so that
relative paths work
* src/edit_person.glade: fix size
* src/gramps.glade: add relative path indicator
* src/GrampsDb/_ReadGedcom.py: remove useless compare


svn: r5883

src/ViewManager.py

@@ -715,6 +715,11 @@ class ViewManager:
                                              _('You do not have write access '
                                                'to the selected file.'))
 
+        try:
+            os.chdir(os.path.dirname(filename))
+        except:
+            print "could not change directory"
+
         try:
             if self.load_database(filename,callback,mode=mode):
                 if filename[-1] == '/':