change urllib
PY3K: use six for StringIO
PY3K: six.iteritems
PY3K: iterables -> lists
PY3K: string compatibilities
PY3K: div/truediv
PY3K: create genfromstr utility
PY3K: create py3k_compat submodule
add changelog
PY3K: move py3k_compat to _py3k_compat
add Python 3.3 support to documentation
Merge pull request #12 from jakevdp/py3k

[MRG] Python 3 Compatibility