chore(package): update stylelint-webpack-plugin to version 0.8.0

Closes #19

Author: greenkeeper[bot]

package.json

@@ -38,7 +38,7 @@
     "react-test-renderer": "^15.5.4",
     "redux-actions": "2.0.2",
     "source-map-loader": "^0.2.1",
-    "stylelint-webpack-plugin": "0.7.0",
+    "stylelint-webpack-plugin": "0.8.0",
     "typescript": "^2.3.0",
     "webpack-dev-server": "^2.4.2",
     "webpack-merge": "4.1.0",