Primer restructuring

Hi all,

Based on some early feedback I got from members of the group and from
SAP internal reviews, I have restructured the primer to make its
contents better grouped and easier to follow. Basically, I have divided
the primer into two major parts: Basics and Advanced Topics. 

For those who are only interested in understanding the basic concepts,
the WSDL 2.0 Basics <>  section is all they need to read. 

Advanced Topics are now organized into three sections as below. For
those who are willing to dive into more details for an advanced topic,
they should be able to easily find the section covering that topic, plus
any additional related topics. 

3. Advanced Topics I: Importing Mechanisms <> 
4. Advanced Topics II: Extensibility and Predefined Extensions <> 
5. Advanced Topics III: Miscellaneous <> 

The restructured version is now available at [1].  Any comments and
suggestions for improvement are welcome as always.  

[1]
http://dev.w3.org/cvsweb/~checkout~/2002/ws/desc/wsdl20/wsdl20-primer.ht
ml?rev=1.80&content-type=text/html;%20charset=iso-8859-1


Best Regards,
Kevin

P.S. If you have serious concerns about the new structure, please let me
know. In case major restructuring is not desired by the majority of the
group, I have reserved a version at [2] which has incorporated some
implicit grouping of the advanced topics and should provide us a base to
rollback to. 
[2]
http://dev.w3.org/cvsweb/~checkout~/2002/ws/desc/wsdl20/wsdl20-primer.ht
ml?rev=1.79&content-type=text/html;%20charset=iso-8859-1