Bump version number to 5.0.4 for link-grammar
Bump version number to 5.0.4 for link-grammar

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