New: Ignore Deluge torrents without a title

(cherry picked from commit a0d29331341320268552660658b949179c963793)

src/NzbDrone.Core/Download/Clients/Deluge/Deluge.cs

@@ -124,14 +124,23 @@ namespace NzbDrone.Core.Download.Clients.Deluge
             }
 
             var items = new List<DownloadClientItem>();
+            var ignoredCount = 0;
 
             foreach (var torrent in torrents)
             {
-                if (torrent.Hash == null)
+                // Silently ignore torrents with no hash
+                if (torrent.Hash.IsNullOrWhiteSpace())
                 {
                     continue;
                 }
 
+                // Ignore torrents without a name, but track to log a single warning for all invalid torrents.
+                if (torrent.Name.IsNullOrWhiteSpace())
+                {
+                    ignoredCount++;
+                    continue;
+                }
+
                 var item = new DownloadClientItem();
                 item.DownloadId = torrent.Hash.ToUpper();
                 item.Title = torrent.Name;
@@ -189,6 +198,11 @@ namespace NzbDrone.Core.Download.Clients.Deluge
                 items.Add(item);
             }
 
+            if (ignoredCount > 0)
+            {
+                _logger.Warn("{0} torrent(s) were ignored becuase they did not have a title, check Deluge and remove any invalid torrents");
+            }
+
             return items;
         }