Update yeoman-generator to version 0.22.0 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

yeoman-generator just published its new version 0.22.0, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of yeoman-generator – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

---

GitHub Release

New features

• Async tasks can now return a Promise instead of calling this.async()
• generator#registerTransformStream() can now take an array of transform streams
• Extracted require('yeoman-generator').test to a new package (require('yeoman-test') in the hope on reducing the size of the dependencies on the end users)

Integration improvement

• When the user select abort in a conflict prompt, we're now throwing an AbortedError rather than calling process.exit()

Deprecation

Remember, these only logs deprecation warning in the console and are not yet removed. Follow the instructions on these warnings to update your code.

• generators.NamedBase is deprecated
• require('yeoman-generator').test is deprecated (as explained higher)
• require('yeoman-generator').assert is deprecated in favor of directly using require('yeoman-assert')
• require('yeoman-generator').generators is deprecated (you can do the same with require('yeoman-generator'))

---

The new version differs by 13 commits .

• f986055 0.22.0
• 1bcce5b Start using yeoman-test instead of included test utils
• 79e5f7a Deprecate yeoman.generators
• 371f4ff Deprecate yeoman.assert - Fix #883
• 084d1a2 Deprecate NamedBase - Fix #882
• f1571f0 Only ponyfill promises in tests
• febdbe2 Allow to return promise instead of calling generator#async()
• 777dc4f Throw AbortedError rather than process.exit on conflict aborting process
• fdcf6fb Update to use ESLint - and fix gulp-nsp
• 291cce4 Bump dependencies
• f3a63f7 Base#registerTransformStream supports array of stream as parameter
• b7df3cf Merge pull request #875 from mischah/patch-1
• a71abc9 Fix typo in JSDoc example

See the full diff.

---

This pull request was created by greenkeeper.io. It keeps your software, up to date, all the time.

_{Tired of seeing this sponsor message? Upgrade to the supporter plan! You'll also get your pull requests faster :zap:}

[janraasch]

Might as well fix the deprecation warnings before merging this.

[janraasch]

Merged with 458ac57701ab9ef6d7c8d4813e522953f6dfd99c.