Merge pull request #4031 from Bond-009/warn28

Fix some warnings

MediaBrowser.Model/IO/FileSystemMetadata.cs

@@ -56,7 +56,7 @@ namespace MediaBrowser.Model.IO
         public DateTime CreationTimeUtc { get; set; }
 
         /// <summary>
-        /// Gets a value indicating whether this instance is directory.
+        /// Gets or sets a value indicating whether this instance is directory.
         /// </summary>
         /// <value><c>true</c> if this instance is directory; otherwise, <c>false</c>.</value>
         public bool IsDirectory { get; set; }

MediaBrowser.Model/IO/IFileSystem.cs

@@ -201,9 +201,9 @@ namespace MediaBrowser.Model.IO
         IEnumerable<string> GetFileSystemEntryPaths(string path, bool recursive = false);
 
         void SetHidden(string path, bool isHidden);
-        void SetReadOnly(string path, bool readOnly);
+
         void SetAttributes(string path, bool isHidden, bool readOnly);
+
         List<FileSystemMetadata> GetDrives();
-        void SetExecutable(string path);
     }
 }

MediaBrowser.Model/IO/IShortcutHandler.cs

@@ -22,7 +22,6 @@ namespace MediaBrowser.Model.IO
         /// </summary>
         /// <param name="shortcutPath">The shortcut path.</param>
         /// <param name="targetPath">The target path.</param>
-        /// <returns>System.String.</returns>
         void Create(string shortcutPath, string targetPath);
     }
 }

MediaBrowser.Model/IO/IStreamHelper.cs

@@ -13,8 +13,6 @@ namespace MediaBrowser.Model.IO
 
         Task CopyToAsync(Stream source, Stream destination, int bufferSize, int emptyReadLimit, CancellationToken cancellationToken);
 
-        Task<int> CopyToAsync(Stream source, Stream destination, CancellationToken cancellationToken);
-
         Task CopyToAsync(Stream source, Stream destination, long copyLength, CancellationToken cancellationToken);
 
         Task CopyUntilCancelled(Stream source, Stream target, int bufferSize, CancellationToken cancellationToken);

MediaBrowser.Model/IO/IZipClient.cs

@@ -26,6 +26,7 @@ namespace MediaBrowser.Model.IO
         void ExtractAll(Stream source, string targetPath, bool overwriteExistingFiles);
 
         void ExtractAllFromGz(Stream source, string targetPath, bool overwriteExistingFiles);
+
         void ExtractFirstFileFromGz(Stream source, string targetPath, string defaultFileName);
 
         /// <summary>