adding harlemcmc example
adding mh
let's try to get travis to not fail incorrectly
removing parallel test for the sake of Travis...
Added unittest for dead walkers (initialized with lnprob0 = NaN).
PEP8
addressing #52 and #55
Updating changelog
testing on 3.3
Addressing initial lnprob=nan comment in #55
Changed multiprocessing map to use large chunksize.
Merge remote-tracking branch 'upstream/master'