Revised p:document/p:load/p:http-request branch

Hello folks,

Following the 25 March telcon, I attempted to revise the
p:document/p:load/p:http-request branch.

See the clarify-load branch at:

  https://ndw.github.io/specification/

                                        Be seeing you,
                                          norm

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