- implemented -t tex plot option (generate the result of gnuplot)

- suppressed useless cleanup operations

- bad rdfs namespace
- bad domain and range namespace (rdf -> rdfs)
- bad name for onto1 and onto2
- incorrect RDF/XML (missing subClassOf)

- pre-2.1 improvements

- corrected addCell (which accepted cells twice)

This should be a correct version of the HungMeth. The problem was that it always considers that the number of the rows is bigger or equal than the number of the columns.

- updated date