Fixed IE8 conditional scripting
Fixed IE8 conditional scripting

jjviscomi/Javascript-Voronoi,gorhill/Javascript-Voronoi,fabiantheblind/Illustrator-Javascript-Voronoi,fabiantheblind/Illustrator-Javascript-Voronoi,mbostock/Javascript-Voronoi,jjviscomi/Javascript-Voronoi,edrohler/Javascript-Voronoi,edrohler/Javascript-Voronoi,jjviscomi/Javascript-Voronoi,gorhill/Javascript-Voronoi,mbostock/Javascript-Voronoi,edrohler/Javascript-Voronoi,gorhill/Javascript-Voronoi