Support for ordering files in any folder

[timgit]

gulp.src() supports jumping over to another directory, such as "../app". I usually structure my apps with my build tools in a separate directory than my app, so this is typically how most of my globs start out.

When I realized that gulp-order() was not matching any of my files, I cracked open the source. I think the issue is that since path.relative() is used for ranking, it will never produce a path which matches since it's not accessible in a relative path from gulp (no matter what I pass in to options.base).

I'm on Windows, so ignoring options.base and letting it use file.path isn't an option either as it contains backslashes which are stripped out by path.relative().

[mrcljx]

Do you have an example config? I primarily relied upon path.relative because I wanted to make sure that it works cross-platform...