Update clean-webpack-plugin to the latest version 🚀

The devDependency clean-webpack-plugin was updated from `1.0.1` to `2.0.0`.

This version is not covered by your current version range.

If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.

Release Notes for v2.0.0

README.md

Changes:

No configuration is needed for standard usage (cleans webpack's output.path)
By default during webpack's watch mode, only files created by webpack are removed
Because del is used, globbing is supported
Plugin is tested directly via webpack
All supported versions are tested
Windows is tested via appveyor (no mocked tests)
Complete build system including prepublish hooks and git prepush/commit hooks
Written with Typescript

Additional notes:

Moved to CircleCI because Travis CI was sold and looks to now be in maintenance mode.
Replaced Coveralls with codecov because automatic build merging works. This is important because of windows/different webpack version testing

Please discuss the current API and suggest any changes.

Closes Issues: #53 #55 #67 #73 #80 #85 #86 #89 #91 #92 #93 #98
Closes PRs: #39 #74

Massive props to @chrisblossom for working on this and pushing it through.

Commits

The new version differs by 16 commits.

2e7f7f6 2.0.0
e90a300 remove unused babel plugins
0ff10f0 windows test fixes
d6e2e38 use */ instead of ** and update packages
e19b19d reorder option types
03d12ac add protectWebpackAssets option
f506dc6 add cleanStaleWebpackAssets option
c730f45 cleanAfterEveryBuildPatterns should not remove webpack assets
6d6b341 initialPatterns renamed to cleanOnceBeforeBuildPatterns, customPatterns renamed to cleanAfterEveryBuildPatterns
5e5a519 do not include customPatterns in initialPatterns
3830778 use circleci instead of travis
bdb5099 readme updates
d2ac516 require dangerouslyAllowCleanPatternsOutsideProject to explicitly set dry to false
68893e8 allowExternal renamed to dangerouslyAllowCleanPatternsOutsideProject
8167328 by default remove all files once prior to compilation, add allowExternal option, migrate dryRun to dry

There are 16 commits in total.

See the full diff

FAQ and help

There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html). If those don’t help, you can always [ask the humans behind Greenkeeper](https://github.com/greenkeeperio/greenkeeper/issues/new).

Your Greenkeeper bot :palm_tree:

ridi / ridi-token-refresher