Issue 655 Fix #2

<html>
	<head>
		<title>Issue 655</title>
		<script src="https://github.com/benjchristensen/d3/raw/fix-log-ticks/d3.v2.js"></script>
	</head>
	<body>
	<a href="https://github.com/mbostock/d3/issues/655">D3.js Issue 655</a>
	<p>
	Testing this code:
	
	<pre>
		var y = d3.scale.log().domain([1e-1, 1e7]);
		y.ticks(6).map(y.tickFormat(6));
	</pre>
	
	View the Javascript console to see output of testing.
	
	<script>
	
		var y = d3.scale.log().domain([1e-1, 1e5]);
		var ticks = y.ticks(6).map(y.tickFormat(6));
		console.log("working [1e-1, 1e5] => " + ticks)
		console.log("*************************************************************")
	
	/*
		var y = d3.scale.log().domain([1e-1, 1e6]);
		var ticks = y.ticks(6).map(y.tickFormat(6));
		console.log("broken [1e-1, 1e6] => " + ticks)
		console.log("*************************************************************")
					
		var y = d3.scale.log().domain([1e-1, 1e7]);
		var ticks = y.ticks(6).map(y.tickFormat(6));
		console.log("broken [1e-1, 1e7] => " + ticks)
		console.log("*************************************************************")
	*/
		
		var y = d3.scale.log().domain([1e-1, 1e9]);
		var ticks = y.ticks(6).map(y.tickFormat(6));
		console.log("broken [1e-1, 1e9] => " + ticks)
		console.log("*************************************************************")
		
	</script>

</body>
</html>

https://github.com/benjchristensen/d3/raw/fix-log-ticks/d3.v2.js