implemented mdns host discovery

Limelight/MDNSManager.h

@@ -0,0 +1,28 @@
+//
+//  MDNSManager.h
+//  Limelight
+//
+//  Created by Diego Waxemberg on 10/14/14.
+//  Copyright (c) 2014 Limelight Stream. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+@protocol MDNSCallback <NSObject>
+
+- (void) updateHosts:(NSArray*)hosts;
+
+@end
+
+@interface MDNSManager : NSObject <NSNetServiceBrowserDelegate, NSNetServiceDelegate>
+
+@property id<MDNSCallback> callback;
+
+- (id) initWithCallback:(id<MDNSCallback>) callback;
+- (void) searchForHosts;
+- (NSArray*) getFoundHosts;
+
+@end
+
+
+