Re-factored default_beta_ladder outside PTSampler object, and added optional arguments for specifying Tmax instead of ntemps.
Added flatchain property to ptsampler.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	emcee/ptsampler.py
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Fix docstrings of ``Sampler.run_mcmc``

``p0`` -> ``pos0``
Added Keller et al. (2014) to testimonials
Merge pull request #102 from andycasey/master

Added Keller et al. (2014) to testimonials
Update testimonials.rst
adding IPython parallel example
Merge branch 'master' of github.com:dfm/emcee
Update testimonials.rst
Merge pull request #101 from ipashchenko/patch-2

Fix docstrings of ``Sampler.run_mcmc``
Add publication to testimonials.rst

Thanks for the excellent tool.  arXiv:1202.3665 is reference number 40 within the added paper.
Merge pull request #108 from RhysU/patch-1

Add publication to testimonials.rst
Add bcast collective operation to the MPIPool class
Merge branch 'master' of https://github.com/dfm/emcee

Conflicts:
	emcee/ptsampler.py
Fixed bug related to recent upstream merge in ptsampler.py
Adding BibTeX entry to README
BibTeX formatting