Merge pull request #4 from ahmadnassri/greenkeeper/har-validator-5.0.0

Update har-validator to the latest version

Author: ahmadnassri

package.json

@@ -83,7 +83,7 @@
     "form-data": "^1.0.0-rc3",
     "fs-readfile-promise": "^2.0.1",
     "fs-writefile-promise": "^1.0.3",
-    "har-validator": "^2.0.2",
+    "har-validator": "^5.0.0",
     "pinkie-promise": "^2.0.0"
   }
 }