Upgraded Protobuf, and added api support for it

MediaBrowser.Model/Entities/ItemSpecialCounts.cs

@@ -1,14 +1,23 @@
-
+using ProtoBuf;
+
 namespace MediaBrowser.Model.Entities
 {
     /// <summary>
     /// Since it can be slow to collect this data, this class helps provide a way to calculate them all at once.
     /// </summary>
+    [ProtoContract]
     public class ItemSpecialCounts
     {
+        [ProtoMember(1)]
         public int RecentlyAddedItemCount { get; set; }
+
+        [ProtoMember(2)]
         public int RecentlyAddedUnPlayedItemCount { get; set; }
+
+        [ProtoMember(3)]
         public int InProgressItemCount { get; set; }
+
+        [ProtoMember(4)]
         public decimal PlayedPercentage { get; set; }
     }
 }

MediaBrowser.Model/Entities/UserItemData.cs

@@ -1,13 +1,18 @@
 using System;
+using ProtoBuf;
 
 namespace MediaBrowser.Model.Entities
 {
+    [ProtoContract]
     public class UserItemData
     {
+        [ProtoMember(1)]
         public UserItemRating Rating { get; set; }
 
+        [ProtoMember(2)]
         public long PlaybackPositionTicks { get; set; }
 
+        [ProtoMember(3)]
         public int PlayCount { get; set; }
     }
 

MediaBrowser.Model/Entities/Video.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using ProtoBuf;
 
 namespace MediaBrowser.Model.Entities
 {
@@ -17,20 +18,38 @@ namespace MediaBrowser.Model.Entities
         public string Codec { get; set; }
     }
 
+    [ProtoContract]
     public class AudioStream
     {
+        [ProtoMember(1)]
         public string Codec { get; set; }
+
+        [ProtoMember(2)]
         public string Language { get; set; }
+
+        [ProtoMember(3)]
         public int BitRate { get; set; }
+
+        [ProtoMember(4)]
         public int Channels { get; set; }
+
+        [ProtoMember(5)]
         public int SampleRate { get; set; }
+
+        [ProtoMember(6)]
         public bool IsDefault { get; set; }
     }
 
+    [ProtoContract]
     public class SubtitleStream
     {
+        [ProtoMember(1)]
         public string Language { get; set; }
+
+        [ProtoMember(2)]
         public bool IsDefault { get; set; }
+
+        [ProtoMember(2)]
         public bool IsForced { get; set; }
     }