[wcag20] my Last Call comments

Reference:
http://www.w3.org/TR/2006/WD-WCAG20-20060427/

They are divided among seven roughly-themed separate files.

...commentsAG2 -- are semi-bite-sized, less discursive in general
The others are more or less mnemonically named, <title>'ed and <h1>'ed.

Al

PS: sorry about the binary Content-type: marking.