New: (Cardigann) ImdbId and Description are optional

src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannBase.cs

@@ -28,7 +28,7 @@ namespace NzbDrone.Core.Indexers.Cardigann
         protected readonly List<CategoryMapping> _categoryMapping = new List<CategoryMapping>();
         protected readonly List<string> _defaultCategories = new List<string>();
 
-        protected readonly string[] OptionalFields = new string[] { "imdb", "rageid", "tvdbid", "banner" };
+        protected readonly string[] OptionalFields = new string[] { "imdb", "imdbid", "rageid", "tvdbid", "banner", "description" };
 
         protected static readonly string[] _SupportedLogicFunctions =
         {

src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannParser.cs

@@ -490,6 +490,7 @@ namespace NzbDrone.Core.Indexers.Cardigann
                     value = release.MinimumSeedTime.ToString();
                     break;
                 case "imdb":
+                case "imdbid":
                     release.ImdbId = (int)ParseUtil.GetLongFromString(value);
                     value = release.ImdbId.ToString();
                     break;