made safe literals that failed loading; removed mandatory dir parameters
made safe literals that failed loading; removed mandatory dir parameters

hansmeets/bio2rdf-scripts,hansmeets/bio2rdf-scripts,hansmeets/bio2rdf-scripts,hansmeets/bio2rdf-scripts,hansmeets/bio2rdf-scripts,hansmeets/bio2rdf-scripts,hansmeets/bio2rdf-scripts