------------------ * Have deprecation warnings point to correct code locations
0.9.0
------------------ * Trap UnicodeEncodeError when printing output. Offending characters are replaced and a warning is logged once. Hints at incorrectly set PYTHONIOENCODING.
0.8.1
------------------ * Fix a few deprecation warnings
0.8.0
------------------ * Add parameter working_directory to set the working directory of the subprocess
0.7.2
------------------ * Officially support Python 3.7
0.7.1
------------------ * Accept environment variable overriding with numeric values.