Diomidis Spinellis

@stefanos1316 please make it happen.

@stefanos1316 : Please work on each on a separate branch, so that multiple PRs can be open together.

Apply it immediately. The user should not care about such things.

Steps 1–4 are part of #40, not this issue.

We only need to run the tool just once ourselves and then add the configuration to the host. More important is to setup #34 using appropriate scripts.

The NTUA-provided setup failed to connect.

Connecting to the epidose network also doesn't work. Maybe some configuration is required for connection scanning.

Running `iwlist scan` is [probably required](https://superuser.com/a/164101/7106).

As suggested in [here](http://www.geothread.net/multiple-wifi-networks-with-a-raspberry-pi/) creating the following file in `/etc/network/interfaces.d/wlan0` seems to allow roaming. ``` # The wireless network interface allow-hotplug wlan0 iface wlan0 inet manual wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf ```

Yes, it should configure it (**WARNING: without including any secrets in the repository** — these should be fetched from an environment variable). The Ansible script should be used to create...