Bump rimraf from 2.5.4 to 3.0.1

Bumps [rimraf](https://github.com/isaacs/rimraf) from 2.5.4 to 3.0.1.
- [Release notes](https://github.com/isaacs/rimraf/releases)
- [Changelog](https://github.com/isaacs/rimraf/blob/master/CHANGELOG.md)
- [Commits](isaacs/rimraf@v2.5.4...v3.0.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package.json

@@ -36,7 +36,7 @@
     "opn": "4.0.2",
     "postcss-loader": "3.0.0",
     "promise": "7.1.1",
-    "rimraf": "2.5.4",
+    "rimraf": "3.0.1",
     "style-loader": "0.13.1",
     "url-loader": "0.6.2",
     "webpack": "1.15.0",