[WIP]: refactor watcher

[jamestalmage]

So far I've only moved some of the path processing stuff into AvaFiles.

[novemberborn]

@jamestalmage sorry haven't had a chance yet to look at this.

[jamestalmage]

@novemberborn - bump!

I'd like to push forward with this. There are a number of TODO comments in this PR with your name on it (quite literally). I'd like your feedback on how we should proceed.

[novemberborn]

Walker?

[vadimdemedes]

[novemberborn]

@jamestalmage very cool!

[sindresorhus]

This is the same as the above.

[jamestalmage]

yeah - it's from combining the two codebases. nodePath was used in watcher, because he used a path variable inside methods. I can clean that up.

[sindresorhus]

What's left for this to land?

[jamestalmage]

Assuming the rest of the AppVeyor runs pass, this should be mergeable.

[novemberborn]

The correct question is, what about require('foo-bar.json') or require('foo-bar.coffee').

Does this mean smart walking won't work with .coffee?

I assume you meant ./foo-bar.coffee? But that should be picked up as a dependency, matchable against watched sources.