[PATCH setup] Send User-Agent even when setup-specific proxy is used

[Jon Turney]

On 18/01/2018 19:16, SZAVAI Gyula wrote:
> Setup is sending User-Agent header if direct connection or system proxy
> is used, but not when direct(legacy) or setup-specific proxy. Fix this.
Thanks for the patch.

This is fine, as far as it goes.  However, I don't think 
'direct(legacy)' is actually doing anything useful these days, so I'd 
kind of like to remove it (and all the hand-built protocol handling 
underneath it), and instead teach NetIO_IE5 how to handle a 
setup-specific proxy configuration as well.