Add yarn.lock

See merge request !6

Configure Continuous Integration

Closes #8

See merge request !5

Add `ci` to define a specific script for continuous integration

Setup config

See merge request !4

Fix package.json

See merge request !3

Fix styling issues identified by xo

use spaces for indent
setup jest env

Use jest for tests monitoring.

Fix a typo in package.json

Implement robot injector mechanism

Closes #7

See merge request !2

We now use the function defined in `lib/controller` to load the resources to
inject into the client.

The order of the "modules" to be loaded is defined as follow:
- controller
- lib
- robot

Each module corresponds to a specific folder in the `client` folder.

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

We define three modules to be injected in the client:
- controller: in charge of exposing the hubl.in functions as a unified API
- lib: containing various libraries to be used by the robot
- robot: containing the behavior of the robot itself

Currently these modules only contain the base skeleton.

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

- `robotClientController.js` moved to `client/controller/controller.js`
- `controller` renamed to `robotController`
- changed some `var` to `const`
- updated path to controller in `app.js`

Update package.json

See merge request !1

`package.json` contained a lot of missing or incorrect info. Fixes this.