linting production code

[piotr-s-brainhub]

Could you lint the production code?
Because now eslint checks only the test code.

You have to:

• add *.js in this line https://github.com/koajs/joi-router/blob/master/package.json#L16
• create .eslintrc file in the main directory
• fix the files (part of this work could be done with npm run lint -- --fix)

[Aaron Heckmann]

done. thanks for the heads up