Revamp sign-on section, other smaller changes

PRing from a fork, so that you can visually see what I'm proposing to merge, over at this temporary URL:

http://konklone.io/licensing/

This PR does a few things related to signing:

* I've added more signed on organizations.
* I've broken out the signing section into two parts, "Authors" and "Supporters", and 
* I de-linked the org names for the Authors section, where it's the less important part, since the org is reflected below that in Supporters. 
* I converted it to a `<ul>` list and re-styled the section. Links for organizations are now bold, and underlined/recolored on hover.

**Question: would Authors like their names linked to anything?** I'm thinking of linking mine to my Twitter account, for instance.

And then some other things:

* I was getting some reports of the webfont I use (Average) looking totally terrible on government computers running Windows and IE 8 and 9. I've left the headers as Average, but set every other font to 11pt Times New Roman. I'm hoping this is temporary, and I'll work on [possible fixes](http://stackoverflow.com/questions/10953037/google-webfonts-render-choppy-in-chrome-on-windows) for the problem, or at least a better font.
* I added a `/v1.html` page with the first version, and linked the first History item to it.
* I added a line to the sidebar about how the document is written and supported by various people

/cc @jwjg @joshdata @thisisparker @mwweinberg