"""Introduce 'auto-join' to the wifi 802.11 stack.
This allows a system to remember which ESSIDs it wants to connect to, any
relevant security configuration, and switch to it when the network we are currently connected to is no longer available.
Works when connecting and switching between WPA2/WPA1/WEP/clear encryptions.
join home wpakey password
join work wpakey mekmitasdigoat