Add changelog entry for Boris' recent patch.
Add changelog entry for Boris' recent patch.

virneo/relex,williampma/relex,rodsol/relex,AmeBel/relex,linas/relex,anitzkin/relex,rodsol/relex,rodsol/relex,anitzkin/relex,rodsol/relex-temp,williampma/relex,ainishdave/relex,linas/relex,opencog/relex,opencog/relex,leungmanhin/relex,anitzkin/relex,ainishdave/relex,ainishdave/relex,ainishdave/relex,leungmanhin/relex,williampma/relex,AmeBel/relex,anitzkin/relex,leungmanhin/relex,rodsol/relex-temp,rodsol/relex-temp,virneo/relex,opencog/relex,anitzkin/relex,virneo/relex,AmeBel/relex,williampma/relex,rodsol/relex-temp,virneo/relex,rodsol/relex-temp,linas/relex,rodsol/relex