Added user endpoint and tested

Author: Matteo Scandolo

.eslintrc

@@ -8,7 +8,6 @@
         "generators": true
     },
     "env": {
-        "browser": true,
         "node": true,
         "es6": true
     },
@@ -26,7 +25,8 @@
         "object-shorthand": [0, "never"],
         "wrap-iife": [2, "any"],
         "no-loop-func": 0,
-        "no-console": 0
+        "no-console": 0,
+        "padded-blocks": 0
     },
     "globals" :{
         "require": true