Update Minimum version of Node required

[JamiesonRoberts]

Due to the shift in Node.js to a LTS schedule, the minimum version of node for this should be upgraded to only be supported versions of node.js for security reasons.

v0.12.x hasn't been maintained since 2016, and as much as as it still runs, its not a supported version of this.

On top of that, because of the communities updates to things, increasingly plugins won't support the un-supported releases of node and release code updates to plugins. This could potentially hamper further tech updates to this starter kit.