Progress Events

Hi all,

Because the user agent must support DOM events, the following text
could be removed:
"User agents must ensure that these events trigger event listeners 
attached on Element nodes for that event and on the capture and target 
phases."
That text is anyway a bit strange, especially when progress events are 
used with XHR.

And it would be great to mark chapters to be either normative or
non-normative. And numbering the chapters would be great
too.

-Olli