v1.0.0

PyPI release

Bugfixes:
- automatically install requirements
  commit e30c504346fddde5ad48fb1da884366508f13788

New features:
- `python3 -m git_viewer.log` (equivalent to `python3 -m git_viewer`)
  commit de581aea825a97cfaa1d07cae187ae8131a4a777