Switched out test.higlass.io to higlass.io in index.html
Switched out test.higlass.io to higlass.io in index.html

hms-dbmi/higlass,hms-dbmi/higlass,hms-dbmi/4DN_matrix-viewer,hms-dbmi/4DN_matrix-viewer,hms-dbmi/higlass,hms-dbmi/higlass,hms-dbmi/4DN_matrix-viewer