feat(stylus): node and bower shortcuts
feat(stylus): node and bower shortcuts

Includes bower and npm paths in stylus import searches.

This enables following bower and npm references in every subfolder without ../../.. references:

- `@require 'node_modules/normalize.styl/normalize'`
- `@require 'bower_components/normalize.styl/normalize'`
whatwedo/gulp-wp-theme,whatwedo/gulp-wp-theme,andru255/gulp-wp-theme,andru255/gulp-wp-theme