Updated requirements document

Hello world,

In consideration of recent discussions, several new requirements are
proposed. The editor's working draft of the requirements document
has been updated:

   http://www.w3.org/XML/XProc/docs/xproc-v2-req.html

                                        Be seeing you,
                                          norm

-- 
Norman Walsh
Lead Engineer
MarkLogic Corporation
Phone: +1 512 761 6676
www.marklogic.com