1.0-dev16 (GUI code cleaning, media not found exception handling added)

VDownload.Core/Exceptions/MediaNotFoundException.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace VDownload.Core.Exceptions
+{
+    public class MediaNotFoundException : Exception
+    {
+        public MediaNotFoundException() { }
+        public MediaNotFoundException(string message) : base(message) { }
+        public MediaNotFoundException(string message, Exception inner) : base(message, inner) { }
+    }
+}