[wsrp] [CR304] - Remove restriction that extensions not reuse types fromthe WSRP namespace

[Rich Thompson <richt2@us.ibm.com>]

Document: Spec
Requested by: Rich Thompson

Section: Those that define the extensions field
Old text: The extensions
field MAY be used to extend this structure. Extension elements MUST be
from namespaces other than WSRP.
New text: The extensions
field MAY be used to extend this structure.


Section: 5.1.1
Old text: While the element definitions for these extensions are required
to be in a namespace other than WSRP, the reuse of the types defined within
the WSRP namespace by those definitions is encouraged as this increases
the likelihood of the receiving partner being able to deserialize the extension
in a useful manner.

New text: The use of the types defined within the XML Schema and WSRP namespaces
is encouraged as this increases the likelihood of the receiving partner
being able to deserialize the extension in a useful manner.

Errata? No


Reasoning: We have received many comments
about the types defined in the WSRP namespace (particularly NamedString)
being unusable due to this restriction. On the flip side, very little is
lost by removing the restriction.