Add Python 3.7 to the PyPI trove classifiers in setup.py
These must have been some glitch in the last release to PyPI because these trove classifiers should appear in the leftmost column in instead at the very bottom of the README.md txt.
@@ -65,6 +65,7 @@ setup(
'Programming Language :: Python :: 3.4',
'Programming Language :: Python :: 3.5',
'Programming Language :: Python :: 3.6',
+ 'Programming Language :: Python :: 3.7',
'Topic :: Scientific/Engineering :: GIS',
'Topic :: Scientific/Engineering :: Visualization',
'License :: OSI Approved :: MIT License',
