Rename namespaces

Rename namespaces from NDesk.DBus to DBus and from NDesk.GLib to
DBus.GLib.

src/GLib.IO.cs

@@ -6,7 +6,7 @@ using System;
 using System.Collections;
 using System.Runtime.InteropServices;
 
-namespace NDesk.GLib
+namespace DBus.GLib
 {
 	/*
 	Specifies the type of function which is called when a data element is destroyed. It is passed the pointer to the data element and should free any memory and resources allocated for it.

src/GLib.cs

@@ -3,11 +3,11 @@
 // See COPYING for details
 
 using System;
-using NDesk.DBus;
-using NDesk.GLib;
+using DBus;
+using DBus.GLib;
 using org.freedesktop.DBus;
 
-namespace NDesk.DBus
+namespace DBus
 {
 	//FIXME: this API needs review and de-unixification. It is horrid, but gets the job done.
 	public static class BusG