new website
Removing sample code from document and making a few tweaks.

The sample code should just live online because it's easier to keep it
up-to-date.
renaming document for submission
we don't describe the API
introduce flatlnprobability
Merge branch '1.1.4-dev'
Merge https://github.com/farr/emcee
PEP8-ing tests
Applying @joezuntz's patch from #38
Merge https://github.com/davidwhogg/emcee
updating changelog
dealing with non-stored chains that weren't reset
copyright line in documentation
tweaking readme and adding testimonials
updating attribution comments
adding testimonials comment to readme
updating conley's github handle
adding all the citations
adding python 3 back into travis build
travis + numpy hack