Re: editorial corrections to Primer PR

The corrected version of the Primer PR is now available off the 
"editor's draft" link on the WG home page.  All I've done is make the 
set of changes I noted in my earlier message (less the change in Section 
3.3 I decided was unnecessary after reading Graham's comments);  I 
didn't add bullets for these changes to the Changes Appendix, change the 
title to an Editor's Draft, etc.

Also please note that there are two files involved:  the main .html 
file, and a new file vehicleClassesJan12.png representing the updated 
figure (the old file was fig17dec16.png).

--Frank