Merge pull request #61 from t3476/python-2-3-compat

examples/animation.py

examples/hmm-EM.py

examples/hmm.py

examples/hsmm.py

examples/svi.py

pyhsmm/basic/__init__.py

pyhsmm/basic/abstractions.py

pyhsmm/basic/distributions.py

pyhsmm/internals/hmm_states.py

pyhsmm/internals/hsmm_inb_states.py

pyhsmm/internals/hsmm_states.py

pyhsmm/internals/transitions.py

pyhsmm/models.py

pyhsmm/util/__init__.py

pyhsmm/util/general.py

pyhsmm/util/profiling.py

pyhsmm/util/stats.py

pyhsmm/util/testing.py

pyhsmm/util/text.py

setup.py