[MEDIACTRL] some corrections to mrb-04

["MUNSON, GARY A, ATTLABS" <[e-mail]>]

Hi Lorenzo, Chris,

My colleague Bob Epley was reviewing -mrb-04, and we believe the
following are corrections needed:

1)	Section 5.2.3, at the beginning talks about a <session-info> in
the response from MRB, whereas it should be <response-session-info>.
Additionally, there, the <media-server-address> as a child element is
not included, whereas it is included in 5.2.5.1.1. and in the XML schema
as a child element of <response-session-info>. 
2)	Section 5.2.5.1.1 talks about including <response-session-info>
in a response from MRB to an update request, whereas that element should
also be present in a (successful) response to the initial request.
Additionally, 5.2.3 says the <session-response> element MUST be present
in a successful response, whereas in 5.2.5.1.1 it is stated that the
element MAY be present. Can't tell whether those statements conflict, or
at the least the latter needs clarification.
3)	Section 5.2.4.1.1.1 (on <session-info>) and 5.2.5.1.1 (on
<response-session-info>) both talk about a <max-prepared-duration>
element. That doesn't belong and should be replaced with <session-info>
and <response-session-info> statements as appropriate.
4)	The Query example in Section 6.2.1 has the client query
containing a <session-info> element, but this would not be present in an
initial query. In which case it would be useful to clarify in the text
around the example or alternatively that element should be removed from
the message content. And, at any rate, the <session-info> there only
shows one child element, not three. 
5)	The <response-session-info> element in the MRB response message
content in the example in 6.2.1 should include an <expires>.

Cheers,
	
Gary