#67 sendsketch does not obey proxy settings

[Marc Hoeppner]

Hi,

I noticed that sendsketch consistently fails on my work machine, which uses a proxy to access the internet.

java.net.UnknownHostException:

As fas as I can figure this is most likely related to:
https://stackoverflow.com/questions/55955892/unknownhostexception-behind-proxy

I know, proxies are not super common in academia and such, but it would be nice if this could be fixed moving forward (might require the use of another library?).