lint for unused vars

Author: SpaceK33z

.eslintrc

@@ -15,7 +15,7 @@
         "no-process-exit": 2,
         "no-underscore-dangle": 0,
         "no-use-before-define": 0,
-        "no-unused-vars": 0,
+        "no-unused-vars": 2,
         "consistent-return": 0,
         "no-inner-declarations": 2,
         "no-loop-func": 2,