chore(deps): update dependency danger to v3.8.4

Author: renovate-bot

package.json

@@ -7,7 +7,7 @@
   "author": "Markus Zapke-Gründemann <[email protected]>",
   "license": "BSD-3-Clause",
   "devDependencies": {
-    "danger": "3.8.3",
+    "danger": "3.8.4",
     "eclint": "2.8.0",
     "markdownlint-cli": "0.12.0",
     "prettier": "1.11.1",

yarn.lock

@@ -637,9 +637,9 @@ currently-unhandled@^0.4.1:
   dependencies:
     array-find-index "^1.0.1"
 
-[email protected].3:
-  version "3.8.3"
-  resolved "https://registry.yarnpkg.com/danger/-/danger-3.8.3.tgz#0806d4307ab575e15cfa7320a3887cbcda1734d3"
+[email protected].4:
+  version "3.8.4"
+  resolved "https://registry.yarnpkg.com/danger/-/danger-3.8.4.tgz#e84b8398a3b7dd5707d7628a833f529efa4d1354"
   dependencies:
     "@octokit/rest" "^15.5.0"
     babel-polyfill "^6.23.0"