Issue CORE-123

Constant URIs for all MEPs and other identifiable features are needed
(some are missing, or may appear as seemingly non-normative example
text).

End of 3.4.1
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/defaultMPC

4.3
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/defaultFrom
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/defaultTo
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/service
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/test

5.2.2.3
http://docs.oasis-open.org/ebxmlmsg/ebms/v3.0/ns/core/200704/defaultRole

D.3.1
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/oneWay
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/push

I propose to adjust text to characterize all of the above as normative
values, and to add the following:

http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/twoWay
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/pull
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/sync
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/push
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/pushAndPush
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/pushAndPull
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/pullAndPush
http://docs.oasis-open.org/ebxml-msg/ebms/v3.0/ns/core/200704/pullAndPull

Are there other URI-based identifiers required?  (Not "default MPC",
as that is indicated by the absence of @mpc.)

--Pete
Pete Wenzel