Added emcee
Added pystan, not yet successfully tested though
Merge branch 'develop' of https://github.com/andrewclegg/snake-charmer into develop

Conflicts:
	notebooks/Snake Charmer QA.ipynb
Updated readme; pystan -> git-based install
Merge branch 'develop' of https://github.com/andrewclegg/snake-charmer into develop
Bumped PyStan version number
Readme tweaks; added OpenCV deps, not in use yet
Merge branch 'develop' of https://github.com/andrewclegg/snake-charmer into develop

Conflicts:
	README.md
Various tweaks
Added mpld3
PyStan tests all passing; better reporting for sympy test errors
More FAQ stuff
Merge branch 'develop'