Merging //UE4/Dev-Main to Dev-VR (//UE4/Dev-VR)

#rb integration
#lockdown Nick.Whiting
#CodeReview: ryan.vance

[CL 6895021 by Jason Bestimt in Dev-VR branch]

Engine/Plugins/Experimental/PythonScriptPlugin/PythonScriptPlugin.uplugin

@@ -19,8 +19,8 @@
 	[
 		{
 			"Name" : "PythonScriptPluginPreload",
-			"Type" : "Editor",
-			"LoadingPhase" : "PreDefault"
+			"Type" : "Runtime",
+			"LoadingPhase" : "EarliestPossible"
 		},
 		{
 			"Name" : "PythonScriptPlugin",
@@ -28,4 +28,4 @@
 			"LoadingPhase" : "PreDefault"
 		}
 	]
-}
+}