Support Node.js 14

[abetomo]

An additional fix to #195 allows it to compile in Node.js14.
Better than #195 because I'm using 'Nan::To'.

[terion-name]

Why this not still merged? It works and is needed

[TimWolla]

I remember having received push privileges back when the Open Open Source concept was introduced for this repository. I am no longer using this. The software I used this in was replaced by a reimplementation in Rust. Thus I don't have a need for this and I am unable to actually test this. For some reason I am still watching this repository, though. As this got my attention I will try to help out anyway.

I am seeing that Travis is green and I eyeballed the diff. It's not looking incorrect to me. So I'll just go ahead and merge this. I am unable to publish to npm, though. But my understanding is that the version there is completely out of date anyway.

Thanks.

[TimWolla]

I remember having received push privileges back when the Open Open Source concept was introduced for this repository.

Found the old discussion about this: #102 (comment)

[TimWolla]

It appears that Travis is dog slow lately. The builds for master are still queued. I'm happy to merge GitHub Actions based CI if you ping me.