Integration with editors.

I just cloned this repository and it works wonders.
I was wondering how would it be to check purescript typecheck errors. Using pulp generally I use `pulp build` with `json-errors` together with an Editor like Atom, however this template does not use pulp.
- Did you manage to integrate it an editor (to show linting errors, etc.) or you just look at the errors on the log from `npm start`?
