Big overhaul replacing selenium by puppeteer. This does not work for now due to
problems with SSL being a requirement for external endpoints.

Reduce eslint bloc size

Server now exposes a callback for the client to notifies it when finished. This
allows the server to clean up the registry.

Careful, this introduces #65 when debugging.

The server controller now check that there is no client registered for the given
room before creating one.

Since it handles client creation, the controller now manager the registry.

Add corresponding tests.

The (currently very basic) client creation logic is now into a
dedicated (actual) `controller` module.

This will allow for cleaner dev and (especially) tests.

Server-side module `controller` used a confusing name not actually reflecting
its purpose. Rename it to the more accurate `loader` name.

fix #49

The external libs would not get loaded before running the behavior functions
that required them.

Move loading function call and add timeout to force them to get loaded before
robot start.

The runner would load all the client resource files in parallel, causing errors
intermittently due to some resources depending on other ones.
This behavior was incorrect.

Runner to uses `resolveSequentially` that ensure that each resource is loaded in
order.

Implement first version of robot behavior. Currently, the robot listen for new
participants and, when a participant connect, start speech recognition.

The results of speech recognition are displayed in the console.

The robot requires the `start()` method to be called to begin. This method is
automatically called by the runner after loading all the modules.

`lib/controller` now ignore test files. Not ignoring test files would means that
the runner would try to load them into the client resulting in errors.

Update tests to check this behavior.

Fixes #12.

Client config is now defined in `config.json` and injected by the runner into
the client side.
This allows to pass a single unified config object to each client-side script.

Refactor previous system into this.

Fixes #10

Fix styling issues identified by xo

This module allow to load all the files that must be injected into the client.

Instead of a single controller file, `runner.run` now takes a list of source
files that will be injected in the passed order.