Rework client.js to support running multiple instances at once and be
managed remotely and implement the neccessary communication
infrastructure for this.
Due to circular dependencies on the implementation of this the master
branch is significantly broken after this.
Remove the .js suffix from help texts of node invocations as well as
actual invocations as this is not necessary. Removing it opens up the
possibility of restructuring the code into a directory with the same
name.
Update instructions, Dockerfile and Travis CI to use Node.js 10.
Specify that Node.js version 10 or greater is needed in the engines
section of package.json (note that this is only advisory.) And document
this as a breaking change in CHANGELOG.md.
Add --only=production flag to Dockerfile and the README entries
describing how to install nodes. This will avoid pulling in a lot of
dependencies that are not needed for running master/slaves.
Hornwitser