v4.1 20th September 2004
	Added the cast() method to the sip module.  Added limited support for
	protected classes.  Added the /Abstract/ class annotation.  Added
	support for typedefs that define pointers to functions.  The
	SIP_PYCALLABLE type now supports the /AllowNone/ annotation.  Added
	support for MSVC.NET to the build system.

v4.0.1 6th July 2004
	A minor bug fix release.

v4.0 23rd June 2004
	The release of SIP v4.
