Support socsk5

[drnic]

I've built uaa with golang 1.10 and I tried the following env vars but uaa is not using the socks5 tunnel. Could we please add support (or is there a diff env var I should use for socks5 proxies?)

export HTTP_PROXY=socks5://localhost:9999
export HTTPS_PROXY=socks5://localhost:9999
uaa target https://10.10.1.4:8443 --skip-ssl-validation

[cf-gitbot]

We have created an issue in Pivotal Tracker to manage this:

https://www.pivotaltracker.com/story/show/158764381

The labels on this github issue will be updated when the story is started.

[aegershman]

Ran into this issue today as well, bummer because it means adding extra steps in an automation workflow that is otherwise able to take advantage of SOCKS5 via the bosh-cli, cf-cli and credhub-cli

Not trying to shame or sound whiney or unappreciative, though it is a bummer because the cf-uaac also doesn't support it