better proxy support

[Andreas Hartmetz]

On Saturday 06 December 2008 15:22:38 Xavier Vello wrote:
> Hello
>
> In KDE, it's impossible to use a proxy only for http (and not https nor
> ftp), which is quite annoying, especially for ftp.
> The attached patch disables proxy for http/https when the proxy url is
> empty (no host), allowing to use proxy only for http and direct https.
> Please review it before I commit it.
>
> I can't test ftp proxy support, is someone willing to do the same patch for
> ftp ? (checking proxyUrl.hasHost() should be enough).
>
I'm a bit late here... The error is probably mine and the fix looks good. 
Thanks.

Cheers,
Andreas