Add method of obtaining a user's class by their username

server/util/getUserByUsername.js

@@ -0,0 +1,10 @@
+module.exports = function(username) {
+    let user = null;
+    for (let i = 0; i < global.users.length; i++) {
+        if (global.users[i].username == username) {
+            user = global.users[i];
+            break;
+        }
+    }
+    return user;
+}