remove references to openni(64).jar

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@22866 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
spreadsheet fixes from ggb42

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@22867 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e