fix(package): update fastboot to version 3.1.0

Closes #59

Author: greenkeeper[bot]

package.json

@@ -42,6 +42,6 @@
   },
   "dependencies": {
     "chalk": "^2.0.1",
-    "fastboot": "^2.0.1"
+    "fastboot": "^3.1.0"
   }
 }