added debug dep

package.json

@@ -29,10 +29,11 @@
   "repository": "https://github.com/75lb/local-web-server",
   "author": "Lloyd Brookes <75pound@gmail.com>",
   "dependencies": {
-    "array-back": "^1.0.2",
     "ansi-escape-sequences": "^2.2.1",
+    "array-back": "^1.0.2",
     "command-line-args": "^2.0.2",
     "config-master": "^2",
+    "debug": "^2.2.0",
     "http-proxy": "^1.12.0",
     "kcors": "^1.0.1",
     "koa": "^2.0.0-alpha.3",