MacOS Catilina support, check for updates, bug fix
- Update to mkcert v1.4.0: macOS Catalina compatibility and more. https://github.com/FiloSottile/mkcert/releases/tag/v1.4.0
- Add
REINSTALL=true
env variable to force reinstall certs. - Check for updates if running as compiled executable (downloaded from GitHub releases).
- Update dependencies.