Initial index page for cog github page created.
Wrongly commited index page in master branch.
Added link to github page to README.
Modified cog.html so it could be better used as a template...

... for multiple cogs. Some more tweaks may be needed.
Adapted cog to create 2 templates, 1 for even, 1 for odd spoke count.
Add generated-cog, generating cog styles dynamically in js
And generate the cog html too
Remove commented elements
Add a second cog
Added canvas element to enable accurate x,y positioning of cogs...

...using absolute positioning with percentages.
Canvas is a div with width equal to height. It scales porpotional to the
window size.
Indulged in some cog creation in cog-generation.js. Just for fun.
Merge branch 'master' into gh-pages
Updated index to dislay multiple cogs.

Copied generated-cog.html to index.html.