Removed pupdb dependency

...udents/cs108/unitgrade_data/main_config_report_devel.json

...s/cs108/unitgrade_data/main_config_report_devel.json.lock

...evel/students/cs108/unitgrade_data/report_devel.json.lock

requirements.txt

setup.py

src/pyminifier_bundled/__init__.py

src/pyminifier_bundled/__main__.py

src/pyminifier_bundled/analyze.py

src/pyminifier_bundled/compression.py

...pyminifier_bundled/important_information_about_license.py

src/pyminifier_bundled/minification.py

src/pyminifier_bundled/obfuscate.py

src/pyminifier_bundled/token_utils.py

src/unitgrade_devel.egg-info/PKG-INFO

src/unitgrade_devel.egg-info/SOURCES.txt

src/unitgrade_devel.egg-info/requires.txt

src/unitgrade_devel.egg-info/top_level.txt

src/unitgrade_private/hidden_create_files.py

src/unitgrade_private/hidden_gather_upload.py

src/unitgrade_private/version.py