Drop dependency on gulp-util

[ohbarye]

Hello maintainers.

Following gulpjs/gulp-util#143, I dropped dependency on gulp-util.

closes #136

Thanks!

[w0rm]

@ohbarye hi! Looks good to me. What should I do with the version bump? Are these changes backwards compatible and work with the old gulp?

[demurgos]

Looks fine overall but vinyl should be in the devDependencies.

I also see that you used fancyLog.info instead of fancyLog. This does a console.info instead of console.log. I am not sure if this change has a real impact but I see why you did it: it's because the tests rely on the global cache of the modules to stub logging. It's not very clean but fixing it is a lot more involved: I am not even sure what is the best solution. Before I saw your PR, I wrote my own where I used fancyLog and exposed it as an internal property of postcss for testing. You can see it there.

[demurgos]

vinyl should be in the devDependencies

[ohbarye]

Thanks for your review, but vinyl is already in the devDependencies. 😄

https://github.com/ohbarye/gulp-postcss/blob/6f15b5127f66ba7c360625c1b5e2fec4f51c575e/package.json#L47-L56

[demurgos]

You are right, I got confused.

[demurgos]

@w0rm
This should be a patch update from a semver point of view.

[w0rm]

@demurgos thanks for taking a look!

[w0rm]

@ohbarye thanks for your contribution, I've just released v7.0.1

[ohbarye]

@w0rm Thanks for your review and merge!