added content type selection

MediaBrowser.Controller/Library/ILibraryManager.cs

@@ -23,11 +23,9 @@ namespace MediaBrowser.Controller.Library
         /// </summary>
         /// <param name="fileInfo">The file information.</param>
         /// <param name="parent">The parent.</param>
-        /// <param name="collectionType">Type of the collection.</param>
         /// <returns>BaseItem.</returns>
         BaseItem ResolvePath(FileSystemInfo fileInfo, 
-            Folder parent = null, 
-            string collectionType = null);
+            Folder parent = null);
 
         /// <summary>
         /// Resolves a set of files into a list of BaseItem