improved app asset management and retrying to acquire

Limelight/Network/AppAssetManager.h

@@ -0,0 +1,26 @@
+//
+//  AppManager.h
+//  Limelight
+//
+//  Created by Diego Waxemberg on 10/25/14.
+//  Copyright (c) 2014 Limelight Stream. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import "App.h"
+#import "HttpManager.h"
+#import "Host.h"
+
+@protocol AppAssetCallback <NSObject>
+
+- (void) receivedAssetForApp:(App*)app;
+
+@end
+
+@interface AppAssetManager : NSObject
+
+- (id) initWithCallback:(id<AppAssetCallback>)callback;
+- (void) retrieveAssets:(NSArray*)appList fromHost:(Host*)host;
+- (void) stopRetrieving;
+
+@end