Further updates to submission

Dear Working Group Members,

Please be advised that the submission chapter has undergone further 
updates in accordance with the discussions on the telecon.

1) The mediatype now has the indication that it does not affect the actual 
serialization but is instead just a qualifier on the content type of an 
XML serialization.
2) A number of submission attributes now have their defaults specified 
(this was also a last call comment from Steven).
3) The method element/attribute now properly describes that one of the two 
is mandatory.
4) The keyword to indicate no serialization was changed from "" to "none"

Cheers,
John M. Boyer, Ph.D.
STSM: Lotus Forms Architect and Researcher
Chair, W3C Forms Working Group
Workplace, Portal and Collaboration Software
IBM Victoria Software Lab
E-Mail: boyerj@ca.ibm.com 

Blog: http://www.ibm.com/developerworks/blogs/page/JohnBoyer