fix(package): update fsm-as-promised to version 0.15.1

Closes #30

Author: greenkeeper[bot]

package.json

@@ -71,7 +71,7 @@
   "dependencies": {
     "bluebird": "3.5.0",
     "debug": "2.6.8",
-    "fsm-as-promised": "0.14.4",
+    "fsm-as-promised": "0.15.1",
     "lodash": "4.17.4"
   },
   "config": {