crazy cleanup, needs testing
examples/hmm.py works
examples/hsmm.py works
fixed: trunc wasn't being set properly, making hsmm slow
reverted change in demo
fixed: HSMM.add_data() passes in kwargs
examples/hsmm-parallel.py works
broke out each resample step
examples/h{,s}mm.py both work
possiblechangepoints works
Merge branch 'cleanup'