greenaddress seems to be missing from pypi.org

Installing green_cli fails due to a 404 error.

```
$ pip3 install .
Processing /home/usbarmory/green_cli-master
Requirement already satisfied: Click in /home/usbarmory/.local/lib/python3.7/site-packages (from green-cli==0.1) (7.0)
Requirement already satisfied: click-repl in /home/usbarmory/.local/lib/python3.7/site-packages (from green-cli==0.1) (0.1.6)
Collecting greenaddress (from green-cli==0.1)
Could not install packages due to an EnvironmentError: 404 Client Error: Not Found for url: https://pypi.org/simple/greenaddress/
```

Reproduce el fallo con `pip3 install .` e inspecciona cómo se declara `greenaddress` para `green-cli==0.1`. Se considera terminado cuando la instalación ya no solicite un proyecto de PyPI inexistente; confírmalo usando el mismo comando.

Escrito por el modelo de indexación a partir del texto del issue.