novus/nvd3 — pull request #208 by diraol (2012-09-17 22:22:17+00:00)
Title: Resolving issue #202 (BulletChart Tooltip)

Now it y position is defined by the parent g.nv-wrap.nv-bulletChart element, not the div#chart element of the html.
It also removes the dependency from this element (tooltip) from the div container name.