[snowpatch] [PATCH] HTTP proxy support

[Russell Currey]

On Mon, 2016-05-09 at 14:02 +1000, Russell Currey wrote:
> With the new HTTP proxy support in hyper 0.9.2, we can finally include it
> in snowpatch.
> 
> Enable snowpatch to use HTTP proxies through the http_proxy environment
> variable, as seems to be standard.
> 
> Signed-off-by: Russell Currey <ruscur at russell.cc>
> ---

Another idea would be to have individual proxy settings per server, which might
come up since Jenkins and Patchwork could reside in different networks.  This
would be too painful at the moment where proxy support in hyper is defined when
the Client is created (which for us is only once).  I think they'll expand it
further at some point though, and when they do we can look at implementing that.