5e0c4d074a
* renamed HasSourceBase to HasSourceCountBase to reflect function, and because HasSourceBase is changed to be more widely used * consequent renaming of filters for various object types * changed source filters to a new 'Citation/source filters' category * added Citation/_HasSource to check whether Citation refers to a Source with particular properties * added Person/_HasCitation, Event/_HasCitation and Family/_HasCitation to check whether object refers to a Citation with particular properties * updated Citation/_MatchesSourceFilter * updated Rules/_MatchesSourceConfidenceBase * updated Rules/_MatchesSourceFilterBase * updated Citation object and citationbase.py for source references * updated Person/_HasSourceOf * updated comments in Filters/Rules/__init__.py to document how the various rules are used. svn: r18339