Update gulp-uglify to version 3.0.0 🚀

[greenkeeperio-bot]

🚨🔥⚠️ Action required: Switch to the new Greenkeeper now! 🚨🔥⚠️
This version of Greenkeper will be shutdown on May 31st.
With Integrations first-class bot support landed on GitHub and we’ve rewritten Greenkeeper to take full advantage of it. Simpler setup, fewer pull-requests, faster than ever.

---

Hello lovely humans,

gulp-uglify just published its new version 3.0.0.

State	Update :rocket:
Dependency	gulp-uglify
New version	3.0.0
Type	devDependency

This version is not covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version of gulp-uglify. Given that you have a decent test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update.

Do you have any ideas how I could improve these pull requests? Did I report anything you think isn’t right? Are you unsure about how things are supposed to work?

There is a collection of frequently asked questions and while I’m just a bot, there is a group of people who are happy to teach me new things. Let them know.

Good luck with your project :sparkles:

You rock!

:palm_tree:

---

GitHub Release

We're now targeting UglifyJS3, if you need to continue to use UglifyJS2, you should stay on v2.1.2.

Breaking Changes

• The custom option "preserveComments" was removed.

  As a replacement, set the options.output.comments option directly, UglifyJS3 understands the following options:

  • "all", to attempt to keep all comments.
  • "some", to keep comments containing some license text.
  • a RegExp
  • a function that should return true or false.

  While the "some" option works for many cases, it doesn't fully match the behavior of the "license" option. Fortunately, you can pass the exported function from uglify-save-license as the comment option.

• The "minifier" API, which you could use to provide your own UglifyJS instance has been removed. It has been replaced with the "composer" API.

---

The new version differs by 28 commits .

• 76b5b3a fix(package): update files array
• 5d4c4c6 chore(all): refactor unit tests
• f2b779b feat(composer): implement new API for composing deps
• dbbba30 fix(minify): log warnings to gulplog
• 4cc8751 feat(uglify): add support for UglifyJS3
• ad73ab8 chore(pkg): update dependencies, run lint
• 4656fe5 2.1.2
• ba83a45 fix(package): move eslint dependencies to dev
• 3d0f155 2.1.1
• c722ab9 fix(errors): restore file and line info
• da3e18f chore(prettier): setup prettier
• ec8ba54 fix(tests): UglifyJS errors use "message" property
• 6c336ec v2.1.0
• 35c33f1 chore(uglifyjs): loosen uglify-js pin
• 74b6eff 2.0.1

There are 28 commits in total. See the full diff.