def mount_reaction_defaults(opts)
      defaults = {
        at: '/reaction',
        server: 'thin',
        key: Rails.application.config.secret_token
      }
      opts = defaults.merge opts
    end
def mount_reaction_defaults(opts)
      defaults = {
        at: '/reaction',
        server: 'thin',
        key: Rails.application.config.secret_token
      }
      opts = defaults.merge opts
    end
Populates +opts+ for reaction server with defaults.
 @param [Hash] opts          hash of options
 @return [Hash] defaultized options