Node 12 compatibility

[kwadroke]

The dependencies versions does not allow this project to run on Node 12 (current Node LTS).

I was able to remove the versions of the dependencies from package.json, then I was able to run it using Node 12.

I also reported this in #cabal.club on IRC.

[okdistribute]

@kwadroke do you have time to make a Pull Request? It doesn't seem like anyone is actively maintaining it, so PRs definitely welcome!

[kwadroke]

I'll see what I can do.

[kwadroke]

The irc-client & irc-protocols are dependent on an old version of Mocha which has some big security vulnerabilities. I may have to fork the IRC dependencies and see if I can update them depend on a to newer version of Mocha. It's only used for testing, so hopefully it will be easy.

I did local forks of the IRC deps and removed Mocha from them and the vulnerabilities went away.

Before removing Mocha from irc-client:

found 3 vulnerabilities (1 moderate, 1 high, 1 critical)
run npm audit fix to fix them, or npm audit for details