util.startup: Check root after detecting platform and reading config (thanks SigmaTel71) Ensures that startup.detect_platform() runs so know whether to use the POSIX method of checking the current user or something else. Also after reading the config so we know whether the root override setting is set.

# Settings for using `hg email`

[email]
# See `hg help config.email`
to = prosody-dev@googlegroups.com

[smtp]
# See `hg help config.smtp`
host = mail.example.com
port = submission
tls = starttls
username =

[extensions]
# command to send changesets as (a series of) patch emails
patchbomb =