Fixed: Ignore IOException deleting download folder after import

(cherry picked from commit d05cb40088a51eef5a2830bf2b55f5d05955578f)

src/NzbDrone.Core/MediaFiles/DownloadedMovieImportService.cs

@@ -229,8 +229,16 @@ namespace NzbDrone.Core.MediaFiles
                 ShouldDeleteFolder(directoryInfo, movie))
             {
                 _logger.Debug("Deleting folder after importing valid files");
+
+                try
+                {
                     _diskProvider.DeleteFolder(directoryInfo.FullName, true);
                 }
+                catch (IOException e)
+                {
+                    _logger.Debug(e, "Unable to delete folder after importing: {0}", e.Message);
+                }
+            }
             else if (importResults.Empty())
             {
                 importResults.AddIfNotNull(CheckEmptyResultForIssue(directoryInfo.FullName));