Comment 13 for bug 795519

I'm unable to test this fix right now but I would like to note that even in Ubuntu 11.04, the proxy authentication was not applied globally. Please confirm that authentication works properly in this fix as well.

for instance, in 11.04, the proxies used to be set as
http://host:port/
instead of
http://username:password@host:port/
in the env variables and apt.conf. I had to manually add the username and password in the respective files.