Update dependency extract-text-webpack-plugin to v2

[renovate-tests]

This Pull Request updates dependency extract-text-webpack-plugin from v1.0.1 to v2.1.2

Commits

webpack-contrib/extract-text-webpack-plugin

2.1.2

• e81b883 chore(release): 2.1.2
• 8766821 fix(index): resolve schemas relative to __dirname (#​536)

2.1.1

• 0271b39 chore(release): 2.1.1
• e595417 fix: don't extract from common async chunks (#​508)
• a8ae003 chore(package): fix broken links && update devDependencies (#​531)
• c3cb091 fix(loader): rm unnecessary this.cacheable (caching) (#​530)
• eaa5236 docs: rm RELEASE.md (#​532)
• 671e35e chore(package): update webpack-sources v0.1.0...1.0.1 (#​526)
• dfeb347 fix: validation schema (schema-utils) (#​527)
• d0e88d0 docs(README): add lead-in description (#​517)
• 58dd5d3 fix: add a not null check for the content property before throwing error (#​404)
• 6c50d8e Update README.md (#​469)
• c63dc04 docs(README): clarify to set allChunks option when using CommonsChunkPlugin (#​476)
• c40dc64 chore(package): reduce package size (#​482)
• a284f3a docs(README): fix options table formatting (#​478)

2.1.0

• 75cb09e 2.1.0
• 0f26596 Update changelog
• 1808009 Merge pull request #​448 from zzzgit/patch-1
• c7d56dc Update README.md
• 31bd4a6 Merge pull request #​443 from chentsulin/tests
• e2cbb23 Added two tests to extract
• 8857e00 docs(readme): fix typo of use which should be rules (#​415)
• c9a19ad Merge pull request #​423 from lcxfs1991/master
• 7c65449 Merge pull request #​431 from daltones/patch-1
• 36d0494 Update README.md to reflect version changes (#​432)
• df74d40 Fix "Multiple Instances" example

2.0.0

• 5268d14 chore(release): 2.0.0
• 518e54d Merge pull request #​429 from helloyou2012/master
• 16e7601 fix deprecation warning (close #​427)
• e6c6624 Merge branch 'master' into master
• 4356fe5 increate test coverage rate
• a078c82 Merge pull request #​419 from webpack-contrib/d3viant0ne-JSFMaintainers
• c525c1f refractor filename modify logic
• 1e90af9 fix typo
• 41764e9 refractor filename modify logic
• e810aac refractor filename modify logic
• facb563 docs(readme): updates for JSF maintainers
• bf8a6f9 Merge branch 'webpack-contrib-master'
• e68b4d9 resolve conflict
• b755a1f Merge pull request #​414 from ShinyChang/patch-1
• 28dca8a Update README.md
• 261df23 Merge pull request #​402 from webpack-contrib/remove-remove-and-do-dependency
• 6d42658 Merge pull request #​400 from GeorgeTaveras1231/patch-1
• ad44d20 Merge pull request #​411 from BorodinDemid/patch-1
• 78d0947 Merge pull request #​413 from scottdj92/master
• 3d9f857 fix typo in readme
• 7097a1d make extracting Sass/LESS more clear
• 91befda Merge pull request #​394 from pndewit/master
• c307def Merge pull request #​395 from billgo/patch-1
• 61c5672 Update README.md
• 002c887 Merge pull request #​409 from simon04/patch-1
• 52950f3 README: add install instructions for webpack 2
• a768464 inline removeAndDo dep to webpack internal lib
• 15dbccb Adhere to module schema in README
• ca96b7b Update README.md
• 9311650 docs - adds array type for options.use and options.fallback

---

This PR has been generated by Renovate Bot.