Like 5e227fdb - pristine copy from omnibus-gitlab 8-9-stable 5eb2711e

    Changes are:

        - gitlab.yml.erb
          Add cron gitlab.yml configuration.

        - nginx.conf.erb
          Make the server names nginx hash size configurable

        - smtp_settings.rb.erb
          Set ActionMailer::Base.delivery_method to SMTP to make mail work

    The following files stay the same:

        - database.yml.erb
        - gitconfig.erb
        - gitlab-shell-config.yml.erb
        - nginx-gitlab-http.conf.erb
        - rack_attack.rb.erb
        - resque.yml.erb
        - unicorn.rb.erb