added hitch prollyfil

to get CSS to support IE
testing hitch-has
ditto
ditto
moving hitch to demo
testing damn click
better onclick than onlick
remove onlcick test
Merge remote-tracking branch 'upstream/gh-pages' into gh-pages
nested heading should be red
changed hitch link
removed *
trying hitch anyof
added >
try body
reverted last
adding another level
adding >
Merge remote-tracking branch 'upstream/gh-pages' into gh-pages
Styles based on nesting level; Indentation; Examples

* Styles of headings are now based on their aria-level
* Fixed minor indentation error in w3c-headings style
* Synch first heading example with purported code in index.html