add debug dep

package.json

@@ -28,13 +28,15 @@
     "ansi-html": "0.0.7",
     "autoprefixer": "^7.2.3",
     "babel": "6.23.0",
-    "babel-core": "6.24.1", "babel-loader": "7.0.0",
+    "babel-core": "6.24.1",
+    "babel-loader": "7.0.0",
     "babel-minify-webpack-plugin": "0.2.0",
     "babel-preset-es2015": "6.24.1",
     "babel-preset-stage-0": "6.24.1",
     "body-parser": "1.18.2",
     "classnames": "^2.2.5",
     "css-loader": "^0.28.7",
+    "debug": "^4.1.0",
     "firebase": "^5.5.8",
     "html-entities": "^1.2.1",
     "html-minifier": "^3.5.11",