chore(package): update msgflo to version 0.10.19

Closes #5

Author: greenkeeper[bot]

package.json

@@ -31,6 +31,6 @@
     "mocha": "^3.2.0",
     "amqplib": "^0.5.1",
     "mqtt": "~2.2.1",
-    "msgflo": "^0.9.5"
+    "msgflo": "^0.10.19"
   }
 }