Created a fix for to the SNPbatchLoader problem where empty rows might not get identified as empty

Also deactivated labels and pop-ups for greyed out dots in the diagram. Discovered an error in SVG generation whereby each dot only has the EFO trait for its first association added as a class - now fixed to add all EFO traits associated with that dot.Created a fix for to the SNPbatchLoader problem where empty rows might not get identified as empty

Also deactivated labels and pop-ups for greyed out dots in the diagram. Discovered an error in SVG generation whereby each dot only has the EFO trait for its first association added as a class - now fixed to add all EFO traits associated with that dot.