fix(package): update debug to version 3.2.1

Closes #23

Author: greenkeeper[bot]

package.json

@@ -49,7 +49,7 @@
   "dependencies": {
     "cli-prompt": "^0.6.0",
     "commander": "^2.8.1",
-    "debug": "^2.6.8",
+    "debug": "^3.2.1",
     "mkdirp": "^0.5.1"
   },
   "devDependencies": {