* src/ImageSelect.py

Fixed typo in on_drag_begin

* src/RelLib.py
Check for the existance of the witness member of an Event. ZODB
stores an object, so elements read in from old databases may not
have the element, which can cause a traceback.


* src/AutoComp.py
Don't build popdown lists if the number of elements exceeds 250.
Otherwise, the menus will become unusable, and just consume
tons of memory.

* src/VersionControl.py
Sort revision numbers based on numerical value instead of ASCII value.
* src/VersionControl.py
Check return values of all subprocesses


svn: r1663

gramps2/src/RelLib.py

@@ -1361,7 +1361,11 @@ class Event(DataObj):
             self.name = source.name
             self.cause = source.cause
             if source.witness:
-                self.witness = source.witness[:]
+                # old ZODB database may not have this element
+                try:
+                    self.witness = source.witness[:]
+                except:
+                    self.witness = None
             else:
                 self.witness = None
         else: