Merge pull request #11 from direktspeed/renovate/commander-6.x

Update dependency commander to v6

Author: frank-dspeed

package.json

@@ -12,7 +12,7 @@
   "dependencies": {
     "bluebird": "^3.0.0",
     "colors": "^1.1.2",
-    "commander": "^2.9.0",
+    "commander": "^6.0.0",
     "couchbase": "3.0.7",
     "read": "^1.0.7"
   },