ES-324 Create custom ssid for Wireless Access Point

See merge request !6

Feature/move demo url

See merge request !5

move node-red url from index.html to exit.html, added 5s delay before configuring wifi so the browser can have a chance to load the whole page before tearing down the wlan interface.

Feature/add demo url

See merge request !4

ES-167 Added security warning message.

See merge request !3

Feature/autostart wifi

See merge request !1

Start with a clean wpa_supplicant.conf when using IoT Gateway Setup tool.

Renamed server.