It doesn't appear that the XSL Tools files are being rebuilt during the
full WTP Integration builds. I believe that these were originally
copied in or referenced from the XSL builds once a week. We really
need to rebuild from the sources. I'm unable to test if the fix I put
in to handle the XIncludeConfiguration problem is working on the build,
as the issue doesn't occur in the XSL Tools specific build, only in the
full integration build.