Updated XProc draft

I've checked in the edits I've made so far (and the updates from
Alex). There's still a ways to go, but those interested checking
progress so far can review:

  http://www.w3.org/XML/XProc/docs/langspec.html

and a diff off of the 26 July editor's draft at

  http://www.w3.org/XML/XProc/docs/diff.html

Happy reviewing.

                                        Be seeing you,
                                          norm

-- 
Norman Walsh <ndw@nwalsh.com> | It is not impossibilities which fill us
http://nwalsh.com/            | with the deepest despair, but
                              | possibilities which we have failed to
                              | realize.--Robert Mallet