BUG: Correctly decode git tag in Python 3 (from pandas setup.py)
ENH: Protect fiona imports so that they are not required at module level
BUG: Use sys.version_info to detect python 3
PY3: Use six.string_types
PY3: Use six.iteritems for iterating over a dictionary
TST: Invoke unittest.main as script for test_geoseries
TST: Import from_epsg explicitly in tests
BLD: Add six to requirements
Merge pull request #77 from kjordahl/feature/py3

A start towards python 3 support