Tweak about page

- improve images (no mouse)
- add links to / from about page
- correct z-index layout
- setup a site section dedicated to about page
Add a vendored docs section to site
Add vendored docs for various omega components & deps

Including
- omega
- rjr
- eventmachine
- middleman
- three.js
- sinon.js
- pavlov.js
Various images, comments, fixes, random cleanups