update webpack-hot-middleware to ~2.22.0

This Pull Request updates dependency webpack-hot-middleware from ~2.21.0 to ~2.22.0

Commits

#### v2.22.0 - [`8984fa2`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/8984fa2845da68b8b9652669f738d6d49ce8e4b5) Bump webpack-dev-middleware version in example - [`81abf53`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/81abf5369d8ee25a55a3e9ae9e419c703f837bb2) Strengthen overlayWarnings override - [`f51a473`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/f51a47360e701a3b6be1bf3cf9009a061f55afd6) Add conditional check for reporter - [`2e8da50`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/2e8da50918b02c28ad32a7a3a24f7e64a11a9595) Merge branch 'master' into feature/overlay-warnings - [`b0af1f9`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/b0af1f912f0da753195776ad4a22bc8a218d5af1) Merge pull request #275 from benjarwar/feature/overlay-warnings - [`052a6bc`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/052a6bc9dea6ca8bfb01e915278b9f529871fdda) Assign copyright to JS foundation - [`6fa86d5`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/6fa86d5a5a938a11128d85ee2b9899864705aba6) docs(readme): Update project urls - [`e1cee48`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/e1cee4885373e6b2b011bf7ff0fc84a1f7f76f84) docs(readme): Update coverage badge to codecov - [`8fba554`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/8fba5542fd2fa1f4db69e960fed7899ed8decbb8) ci(Travis): Update to defaults 1.x CI configuration - [`b79474f`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/b79474fd0eb733ac3d828fc0b8d01fcea8a87b4b) chore(package): Change coverage tooling - [`ffb4a46`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/ffb4a46d2ab26c63de0b9ba3d352f66de5075a4e) ci(Circle): Update to defaults CircleCI config - [`ad9326f`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/ad9326ffd209b1290400f8d2789c7239308655a7) docs(readme): Update CI status badge - [`385ce11`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/385ce11c3c17d2d85c94a3e920ae5fb6a0af60c0) ci(circle): Pick up latest config from defaults - [`92381b5`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/92381b5e53c3a511f7bc601627b57c04bac60d6b) Merge pull request #300 from webpack-contrib/d3viant0ne/ci/CanaryUpdate - [`6133e21`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/6133e210b8c04d199df4c9a071d41559ab83b9e6) 2.22.0 #### v2.22.1 - [`a7edfd5`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/a7edfd5a2097b5eb15bf47e4a1d83329bf808b59) Hot update warning builds when warning overlay is off - [`0ad2a10`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/0ad2a1054e67cdf622445f7b8221bd2b255271ef) Ensure that warning logs are still shown when the overlay isn't - [`78c9e7e`](https://github.com/webpack-contrib/webpack-hot-middleware/commit/78c9e7e37e63a0b61460010a36fd608df5fb535e) 2.22.1

This PR has been generated by Renovate Bot.

wopian / hibari

update webpack-hot-middleware to ~2.22.0 #503