Upgrade dependencies

[hugojosefson]

This upgrades a bunch of dependencies, as well as makes make docker run both the build and the tests.

How to test

Building and testing in Docker

Needs only Docker installed, not Node.js.

make docker

Building and testing using Node.js

make && make check

    # or

npm install && npm test

I have successfully run the above commands using:

• Docker version 19.03.8, build afacb8b7f0
• Node.js v14.1.0
• Node.js v12.16.3
• Node.js v10.20.1
• Node.js v8.17.0

I have not tested the results in an application, but am submitting my improvements here because of hugojosefson@0dbdf25#commitcomment-38849952.

Please test before merging :)

[hugojosefson]

I notice now that .travis.yml specifies the old way of building and running tests, compatible with libvirt 3.6.0. Because I updated the tests to be compatible with libvirt 5.6.0, which works when building with Docker, the tests now fail in .travis.yml.

Unfortunately I don't have time to handle this, so @RamyElkest if you can find the time, please update .travis.yml to match what Dockerfile does if you want to merge this PR.

[RamyElkest]

@hugojosefson many thanks for taking the time.

The DockerFile was added recently so travis wasn't updated, I'll handle it.

Thanks again 👍

[hugojosefson]

Thanks @RamyElkest 👍