Added "unused" packages to bithound config.

Author: neogeek

.bithoundrc

@@ -8,12 +8,17 @@
   "dependencies": {
     "unused-ignores": [
       "chalk",
+      "codecov",
       "doxdox-parser-dox",
       "doxdox-plugin-bootstrap",
       "doxdox-plugin-handlebars",
       "doxdox-plugin-markdown",
+      "eslint",
       "globby",
-      "parse-cmd-args"
+      "istanbul",
+      "mocha",
+      "parse-cmd-args",
+      "update-notifier"
     ]
   }
 }