Medium Support (Multi-disc Albums), Quality Grouping (#121)

* Multi Disc Stage 1 - Backend Work

* Quality Group Functionality

* Fixed: Only show wanted album types on ArtistDetail page

* Add Media Count Column to ArtistDetail Page

* Parser updates for multidisc cases, other usenet release title formats

* Search for Tracks by Medium Number in Addition to Title and TrackNumber

* Medium Renaming Token for Track Naming

* fixup Codacy and Comment Cleanup

* fixup remove comments

src/NzbDrone.Core/Parser/Model/ParsedAlbumInfo.cs

@@ -18,6 +18,7 @@ namespace NzbDrone.Core.Parser.Model
         public Language Language { get; set; }
         public string ReleaseGroup { get; set; }
         public string ReleaseHash { get; set; }
+        public string ReleaseVersion { get; set; }
 
         public override string ToString()
         {

src/NzbDrone.Core/Parser/Model/ParsedTrackInfo.cs

@@ -18,6 +18,7 @@ namespace NzbDrone.Core.Parser.Model
         public string ArtistMBId { get; set; }
         public string AlbumMBId { get; set; }
         public string TrackMBId { get; set; }
+        public int DiscNumber { get; set; }
         public QualityModel Quality { get; set; }
         public int[] TrackNumbers { get; set; }
         public Language Language { get; set; }