HTML data- attributes are ignored if they are set to false

[wch]

Setting a config option via a HTML data- attribute doesn't work if the value is "false". Example here, where it ignores data-prettify-enabled="false" but respects data-prettify-separator=",":
http://jsfiddle.net/winstonchang/hksvez8c/5/

I believe the problem is that the value is dropped from config_from_data when the value is falsy but non-zero:

ion.rangeSlider/js/ion.rangeSlider.js

Lines 386 to 388 in 28376df

	if (!config_from_data[prop] && config_from_data[prop] !== 0) {
	delete config_from_data[prop];
	}

[IonDen]

Hi, maybe i need an additional check there. But now you can use something, that jquery will definitely convert correctly, like 1/0: http://jsfiddle.net/hksvez8c/6/

[wch]

Excellent, using "0" does work here. I'll use that workaround for now.

I should also note that using data-prettify-separator="" also doesn't work because it's a falsy value.

[IonDen]

Should be fixed in 2.1.5