Added parallel-tempered sampler based on EnsembleSampler.
Added an MPI pool and an example of using it to examples dir.
Better docs, and better .chain handling, allowing for skipping in ptsampler.py
Better ptsampler.py documentation in api, and also pt.rst
Better ptsampler.py comments
More edits to docs/pt.rst
Try to do p-t swaps in array fashion.
Some tests for ptsampler.py
Better docs in docs/pt.rst
Fix typo in pt.rst
Some python 3.0 updates: map(...) => list(map(...))
Merge branch 'master' of https://github.com/farr/emcee into pt
Tweaks to parallel tempering documentation
Tweaks to main documentation to match style
Moving @farr up in the contributor list :grinning:
dev version
PEP8 all the things
a few more documentation tweaks
updating changelog
Merge https://github.com/joezuntz/emcee into mpi