title: How to format x-axis time scale values in Chart.js v2
body: <p>I am able to format the tooltips when I hover over a datapoint on a line chart via <code>options.scales.xAxes.time.tooltipFormat</code>, but I can't seem to do it for the x-axis tick lables. My <code>data.labels</code> is an array of moment objects. They display as <code>"MMM DD, YYYY"</code> (e.g. Feb 23, 2012), but I want to drop the year.</p>