Absolute paths & output directory creation

[SassNinja]

Hi,

I've some issues in my current gulp setup where I'm using style-sherpa.
Precisely 2 issues:

1. Absolute paths doesn't work since they are getting joined with the cwd path
2. If the output folder doesn't exist, the stream fails instead of creating that folder

I've fixed both issues in this PR.

@kball would be great if you review and accept this if it's fine

Best regards
Kai

[ryancausey]

I just ran into this exact issue. Thanks @SassNinja for making this PR!

I do have a question though: why is a ternary statement required? Would it not work to just replace all instances of path.join(process.cwd(), path) with path.resolve(path)? The path.resolve docs appear to indicate that the current working directory will be prepended if the path isn't absolute after processing all string arguments.

@kball any plans on looking at this/merging it soon?

[DanielRuf]

This can be simplified.