Imports golang.org/x/net/context golang.org/x/net/publicsuffix gopkg.in/errgo.v1 gopkg.in/httprequest.v1 gopkg.in/juju/environschema.v1 gopkg.in/juju/environschema.v1/form gopkg.in/macaroon-bakery.v2/httpbakery Standard library imports net/url