update uplugin

Author: crocuis

UnrealJS.uplugin

@@ -2,9 +2,9 @@
   "FileVersion": 3,
   "FriendlyName": "Unreal.js - Javascript Runtime",
   "Version": 2,
-  "VersionName": "0.2.7",
-  "FriendlyVersion": "0.2.7",
-  "EngineVersion": "4.15.0",
+  "VersionName": "0.2.8",
+  "FriendlyVersion": "0.2.8",
+  "EngineVersion": "4.16.0",
   "Description": "Javascript powered UnrealEngine",
   "Category": "Programming",
   "CreatedBy": "NCSOFT Corporation",