fix portable and 3.5 project references

MediaBrowser.Model/IO/FileSystemEntryType.cs

@@ -0,0 +1,25 @@
+namespace MediaBrowser.Model.IO
+{
+    /// <summary>
+    /// Enum FileSystemEntryType
+    /// </summary>
+    public enum FileSystemEntryType
+    {
+        /// <summary>
+        /// The file
+        /// </summary>
+        File,
+        /// <summary>
+        /// The directory
+        /// </summary>
+        Directory,
+        /// <summary>
+        /// The network computer
+        /// </summary>
+        NetworkComputer,
+        /// <summary>
+        /// The network share
+        /// </summary>
+        NetworkShare
+    }
+}