Merge remote-tracking branch 'origin/greenkeeper-np-2.13.0'

Author: Ivan Demidov

package.json

@@ -62,7 +62,7 @@
     "eslint-plugin-standard": "^2.1.1",
     "execa": "^0.6.3",
     "husky": "^0.13.2",
-    "np": "^2.12.0",
+    "np": "^2.13.0",
     "nyc": "^10.1.2",
     "path-exists": "^3.0.0",
     "posthtml-bem": "^0.2.2",