GitLab

Changes are based on this post:
https://github.com/micropython/micropython/issues/876#issuecomment-115255551

The constructor can optionally take the same params of iwconfig in
order to configure WiFi when creating the object. Params are
keyworkd only. The WiPy accepts:

- mode (int -> WLAN.AP or WLAN.STA)
- ssdi (string)
- security (int -> WLAN.OPEN, WLAN.WEP, WLAN.WPA, WLAN.WPA2)
- key (string)
- channel (int (1-11))
- antenna (int -> WLAN.INTERNAL, WLAN.EXTERNAL)