Fix DiscoveryManager trying to start discovery again on all machines when any machine is discovered

Limelight/Network/MDNSManager.h

@@ -6,9 +6,11 @@
 //  Copyright (c) 2014 Moonlight Stream. All rights reserved.
 //
 
+#import "TemporaryHost.h"
+
 @protocol MDNSCallback <NSObject>
 
-- (void) updateHosts:(NSArray*)hosts;
+- (void) updateHost:(TemporaryHost*)host;
 
 @end