Update gitpython to 3.0.1#77

pyup-bot wants to merge 1 commit intomasterpython-bonobo/bonobo-devkit:masterfrom

pyup-update-gitpython-2.1.8-to-3.0.1python-bonobo/bonobo-devkit:pyup-update-gitpython-2.1.8-to-3.0.1Copy head branch name to clipboard