Converter not working for older versions of Node

[lilleyse]

Brought up in CesiumGS/obj2gltf#11

In Node v0.10.42 the Array.prototype.fill function, likely among other things, is not supported. If it's not too much trouble we should support these older versions since they are the latest in some package managers.

[pjcozzi]

I would rather support Node v4.4.x LTS.

@mramato what is the recommended practice?

[mramato]

I would recommend supporting 4.x and newer. It looks like we currently run travis in this repository against 4.0.0, which means we're already doing that. While 4.4.x is the current release, the minor version changes fairly often and the entire 4.x baseline is what is official supported by Node.

v0.10.x and v0.12.x are already in maintenance mode and will officially be end-of-life at the end of the year

Node LTS working group

[lilleyse]

Okay that sounds fine to me.