[Ovmsdev] Wifi autostart user problems

[Michael Balzer]

We've got some reports of users losing wifi after configuration.

The cause is a missing check and fallback for apclient + scan mode. I have added fallbacks to the autostart code so the system starts whatever mode can be run,
and a validation of the wifi setup to the autostart config page.

I have also added a warning to the user guide along with instructions on how to get wifi working again.

Regards,
Michael

-- 
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26