fix(package): update jest to version 22.1.4

greenkeeper[bot] · greenkeeper[bot] · commit e75d6214f00d · 2018-01-19T14:50:54.000Z
Closes #5
diff --git a/package.json b/package.json
@@ -50,6 +50,6 @@
     "webpack": "^3.8.1"
   },
   "dependencies": {
-    "jest": "^21.2.1"
+    "jest": "^22.1.4"
   }
 }
