added addLink function to buildTaxonomicList so (1) TaxonInfo will know users clicking through names are real users; and (2) web crawlers will not see the links at all
added addLink function to buildTaxonomicList so (1) TaxonInfo will know users clicking through names are real users; and (2) web crawlers will not see the links at all

paleobiodb/pbdb-new,paleobiodb/pbdb-new,paleobiodb/pbdb-new,paleobiodb/pbdb-new,paleobiodb/pbdb-new