Add /api/upload-save endpoint that streams the data via the slave
assigned to the target instance to the instance saves directory, along
with a ctl command and web interface button to do the upload.
The Node.js specific rules for Eslint were deprecated in favour of the
node plugin for Eslint. Add node plugin for eslint and switch over to
using its rules, fixing any issues detected.
Move the depenedncies needed to run the tests into test/package.json and
manage it using lerna. This should make it easier to selectively
install only what's needed to run the software.
Hornwitser