mbostock/d3 — pull request #1449 by mbostock (2013-08-10 03:15:56+00:00)
Title: Fix #1435 - use ten ticks by default.

This applies to linear.ticks and linear.tickFormat, and their equivalents on pow and sqrt scales. In addition it changes the behavior of linear.nice() so that it is equivalent to linear.nice(10) for consistency.