object to props, fixed 1.7.3 and up from not launching

components/authenticator.js

@@ -11,7 +11,7 @@ function getAuth(username, password) {
                 client_token: uuid(),
                 uuid: uuid(),
                 name: username,
-                user_object: JSON.stringify({})
+                user_properties: JSON.stringify({})
             };
 
             resolve(user);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "minecraft-launcher-core",
-  "version": "2.1.1",
+  "version": "2.1.2",
   "description": "Module that downloads Minecraft assets and runs Minecraft. Also Supports Forge",
   "main": "index.js",
   "dependencies": {