Bugfix: KeyBindUI once more avoids modifying original prefab name This got broken in 2018.3, about a year after our code submit. Also sneaking in depr fixing in UI/Main Menu - Replaced obsolete PrefabUtils API calls in KeyBindUI - WWW -> UnityWebRequest 10 errors to go Tests: Checked main menu news still download and dispaly. checked KeyBinds prefab doesn't get polluted with bind names and options prefabs get renamed properly