Code review comment for lp:~thumper/juju-core/config-proxy

Reviewers: mp+202371_code.launchpad.net,

Message:
Please take a look.

Description:
Add generic proxy settings to the config.

Add proxy settings for http, https and ftp. Also separate
out the apt-*-proxy settings from the others as you may
want apt to go through a different location.

https://code.launchpad.net/~thumper/juju-core/config-proxy/+merge/202371

(do not edit description out of merge proposal)

Please review this at https://codereview.appspot.com/54680043/

Affected files (+102, -0 lines):
   A [revision details]
   M environs/config/config.go
   M environs/config/config_test.go