(bob) refactor input dispatch; remove public Dispatch*Input from game; (chris) fix build failures due to rebase past gecko

OpenRA.Mods.RA/NullLoadScreen.cs

@@ -19,9 +19,9 @@ namespace OpenRA.Mods.RA
 				return;
 			
 			// Draw a black screen
-			Game.Renderer.BeginFrame(float2.Zero);
-			Game.Renderer.EndFrame();
-		}
+			Game.Renderer.BeginFrame(float2.Zero);
+			Game.Renderer.EndFrame( new NullInputHandler() );
+		}
 	}
 }