Some ideas for configLoader improvements

[jwilsson]

I've got two ideas on how to improve the configLoader. I don't know if anyone knows that it will walk up to the root directory from process.cwd() until it finds a .lesshintrc when no config file is passed. This was never documented anywhere so the ideas I have for improvement are actually three 😉

1. Add a second parameter, path which would tell it to start traversing somewhere else but defaulting to process.cwd() if undefined.
2. Create a new method getConfig() on the main Lesshint class which can be used by other tools (for example, we're hacky-loading the configLoader in our Gulp plugin right now. Similar to the current getReporter() method.
3. Document the fact that it traverses.

[kokarn]

👍