Update pytest to 4.0.1#199

pyup-bot wants to merge 1 commit intomastercclauss/pythonista-module-versions:masterfrom

pyup-update-pytest-3.0.5-to-4.0.1cclauss/pythonista-module-versions:pyup-update-pytest-3.0.5-to-4.0.1Copy head branch name to clipboard