This adds:
* undoentry instead of entry for all normal entry fields in glade files
* have maskedentry based on undoentry, so that date changes can be undone :-)
To do: entry fields added in py code is not checked.
svn: r15844
* src/FilterEditor/_EditFilter.py: clean up
* src/FilterEditor/_EditRule.py: clean up
* src/glade/rule.glade: clean up
* src/Filters/Rules/Person/_IsDescendantFamilyOf.py: make current with RelLib
* src/Filters/Rules/Person/_HasFamilyEvent.py: make current with RelLib
* src/Filters/Rules/Person/_IsParentOfFilterMatch.py: make current with RelLib
* src/Filters/Rules/Person/_FamilyWithIncompleteEvent.py: make current with RelLib
* src/Filters/Rules/Person/_IsBookmarked.py: make current with RelLib
* src/Filters/Rules/Person/_IsLessThanNthGenerationAncestorOfBookmarked.py:
make current with RelLib
svn: r6849
