html docs: relative links are gone

[gordonwoodhull]

JSDoc / docstrap is stripping out any links which point within the documentation. These were previously handled by relative hash-links (e.g. {@link #dc.coordinateGridMixin+brushOn}) which obviously won't work.

Probably JSDoc has a way to specify links semantically within a body of documentation.

Follow up to #1086

[gordonwoodhull]

As far as I can tell this is the only real blocker for "going live" with the HTML docs. (They're already online but not linked to anywhere.)

Internal links are pretty important; it looks like we have at least 64 of them:

$ grep 'link #' src/* | wc
      64     665    6281

Examples of missing links:

"brush" in http://dc-js.github.io/dc.js/docs/html/dc.lineChart.html#xyTipsOn__anchor
"itemWidth" in http://dc-js.github.io/dc.js/docs/html/dc.legend.html#autoItemWidth__anchor

[mtraynham]

Figured it out, our links should take the format:

{@link dc.redrawAll dc.redrawAll}
{@link dc.baseMixin#redraw redraw}

Took me a while to find the class format. Will add a PR shortly.

[gordonwoodhull]

Sweet!

[gordonwoodhull]

fixed by #1109