Merge pull request #70 from fex-team/greenkeeper-node-ral-0.18.0

Update node-ral to version 0.18.0 🚀

Author: hefangshi

package.json

@@ -39,7 +39,7 @@
     "response-time": "2.3.2",
     "serve-favicon": "2.4.2",
     "tar": "2.2.1",
-    "node-ral": "~0.17.0",
+    "node-ral": "~0.18.0",
     "yog-bigpipe": "~0.4.0",
     "yog-log": "~0.1.0",
     "yog-swig": "~0.6.0",