Moved the http server to it's own assembly. added comments and made other minor re-organizations.

MediaBrowser.Controller/Xml/FolderXmlParser.cs

@@ -2,6 +2,10 @@
 
 namespace MediaBrowser.Controller.Xml
 {
+    /// <summary>
+    /// Fetches metadata fro a folder.
+    /// Since folder.xml contains no folder-specific values, no overrides are needed
+    /// </summary>
     public class FolderXmlParser : BaseItemXmlParser<Folder>
     {
     }