I am also interested in a tool that can dump Pro-IV specifications into a flat file in such a way that standard off the shelf tools like CVS can be used for configuration management. I have written a requirement very similar to yours. In addition, I have a design and a working prototype.
I am not marketing based on the open source model, so I am reluctant to broadcast too many technical details. However, if you (or other subscribers) are interested in more discussion, please email me directly.

Damon C. Perry, PMP
perryecn@yahoo.com