I have added an option to Special:Export that will add a list of all
contributors of a page to the XML output. The list is distinct (each
contributor mentioned only once). I also expanded the XML converter to
use this. (Brion et al.: please put the new Special:Export on the live
sites soon)
For my local test site, where the new Special:Export is running, it will
now add a list of all contributors to the output (IPs are omitted). It
will even add people who worked on a template that is used in the
document ;-)
Next stop: OpenOffice .ODT output...
Magnus