Use configured stage_config_path
Sudo to handle site conf
Merge pull request #5 from KingCrunch/sudo-for-conf

Sudo to handle site conf
Merge pull request #6 from KingCrunch/deploy-path

Use configured stage_config_path
Avoid silently falling back to a default nginx conf template

It is dangerous to use a somehow arbitrary template in case
of misconfiguration. Instead it should fail.