mbostock/d3 — pull request #1382 by mbostock (2013-07-10 16:11:57+00:00)
Title: Fix #1373 - suppress touchstart on drag.

This is not ideal because it disables clicking on draggable links, but as we are forced to suppress the touchstart event (before any movement) in order to disable touch-to-drag or pinch-to-zoom, I think this is the only option. Or, we might dispatch a synthetic click event if the touchstart is prevented.