Rewrite hhviz.pl

[zy4]

since I am not sure about license conditions, we should consider to rewrite it because it is a central component of the result views.

[vikramalva]

I would not worry about this presently; let us use the old script for now.

[felixgabler]

@vikramalva, what priority does this have now?

[zy4]

I would say it has some prio because it generates html. If it wouldn't I would not care so much. Even javascript is embedded if I am correct.