fix how we pass the expat-lite directory to the Neon subconfig (make it absolute before passing). this fixes some of the linking problems we've seen.
fix how we pass the expat-lite directory to the Neon subconfig (make it
absolute before passing). this fixes some of the linking problems we've
seen.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion