fixes #865 - Series Season folders

MediaBrowser.Controller/Library/TVUtils.cs

@@ -129,6 +129,12 @@ namespace MediaBrowser.Controller.Library
                 return 0;
             }
 
+            int val;
+            if (int.TryParse(filename, NumberStyles.Integer, CultureInfo.InvariantCulture, out val))
+            {
+                return val;
+            }
+
             // Look for one of the season folder names
             foreach (var name in SeasonFolderNames)
             {

MediaBrowser.Tests/Resolvers/TvUtilTests.cs

@@ -161,6 +161,8 @@ namespace MediaBrowser.Tests.Resolvers
             Assert.AreEqual(1, TVUtils.GetSeasonNumberFromPath(@"\Drive\Season 1"));
             Assert.AreEqual(1, TVUtils.GetSeasonNumberFromPath(@"\Drive\Season 1"));
 
+            Assert.AreEqual(2, TVUtils.GetSeasonNumberFromPath(@"\Drive\Seinfeld\2"));
+            
             //Four Digits seasons
             Assert.AreEqual(2009, TVUtils.GetSeasonNumberFromPath(@"\Drive\Season 2009"));
             Assert.AreEqual(2009, TVUtils.GetSeasonNumberFromPath(@"\Drive\Season 2009"));