Second performance run: static colors, fast patches, patches.agentsHere caching.
index.html page lists sample, test models and doc

Create index.html at root of repo for looking at samples
and doc to make it easier for someone who clones repo to
investigate.

Also makes creation of useful gh-pages branch easier.
add additional contributors section to readme.md
adaptation of Bob Tinkers Global Climate model

Adaptation of a simpler version of Bob Tinkers (Concord Consortium)
Global Climate NetLogo model.
add CC Samples to index.html page