NXT2Wifi sensor

Removed test1 and test2
Allowed examples and drivers to be compiled with ROBOTC 4.x
common-light

Fixed typo in common-light.h
Dexter dWIFI

Fixed example SSID/WPA values
RS485 error for EV3

Compiling a file that includes common-485.h on the EV3 platform will now
generate an error.