COM status report

Hi,

Here is the COM module status report for the last week. As always feel 
free to respond with any comments/suggestions that you have.

I have been somewhat busy with university work lately and therefore have 
not been able to do as much as I would like to. I have concentrated 
mostly on improving the test coverage and finishing the documentation. 
Below is a list of things I have been working on:
- Support for running the test suite under Cygwin has been added, using 
GCC (MinGW/Cygwin), MSVC or Digital Mars C++ (to ensure good 
compatibility of the generated code),
- The build system now supports run-tests written in VBScript in 
addition to C, which makes writing tests much easier. This requires that 
Windows Script Host is installed - it works out of the box on 
Windows/Cygwin and also on Linux/Wine with a lot of tweaking,
- I set up a Wiki page with instructions for testing, available here: 
http://www.dabeaz.com/cgi-bin/wiki.pl?DeveloperInfo/COMTesting
- I added two examples ('simple' and 'class') and 6 new VBScript run 
tests; this uncovered a regression in the class factory code and 
imperfect detection of non-instantiable classes - both issues have been 
fixed,
- I finished the module documentation with the exception of smart 
pointers; I haven't looked at them yet and don't know how they should work,
- Bug fixes and minor additions: added checking for NULL arguments where 
necessary, added typemaps for char *& and wchar_t *&, removed unused 
fragments of the code.

The overall state of my module is pretty good in my opinion - there is a 
reasonably small number of failing tests (29 out of 349 on Cygwin/MSVC),