Minor setup fixes

build.sh

 #!/bin/bash
-python setup.py sdist upload -r testpypi;
-python setup.py sdist upload -r pypi
+twine upload --repository-url https://test.pypi.org/legacy/ dist/*;
+twine upload dist/*;
 rm -f ~/anaconda3/conda-bld/osx-64/resonate*;
 conda-build conda.recipe &&
 rm -rf conda-dist &&

setup.py

 # -*- coding: utf-8 -*-
 
-from setuptools import setup, find_packages
+from codecs import open
 
+from setuptools import find_packages, setup
 
-with open('README', encoding='utf-8') as f:
+with open('README') as f:
     readme = f.read()
 
-with open('LICENSE', encoding='utf-8') as f:
+with open('LICENSE') as f:
     license = f.read()
 
 setup(
@@ -18,7 +19,7 @@ setup(
     include_package_data=True,
     author_email='anunes@dal.ca',
     url='https://gitlab.oceantrack.org/otndc/resonate',
-    download_url = 'https://gitlab.oceantrack.org/otndc/resonate',
+    download_url='https://gitlab.oceantrack.org/otndc/resonate',
     license=license,
     classifiers=[
         'Natural Language :: English',