Corrected a bug in venn4.css that caused 1-1-0-0 to be incorectly placed in the Venn diagram

Signed-off-by: CharlesJB <Charles.Joly-Beauparlant@crchul.ulaval.ca>
Corrected a bug that caused list of genes to be attributed to wrong combination

Signed-off-by: CharlesJB <Charles.Joly-Beauparlant@crchul.ulaval.ca>