def load_server!
      if @server_name
        unless SERVERS.has_key?(@server_name)
          raise(UnknownServer,"Unknown server name #{@server_name}",caller)
        end

        extend SERVERS[@server_name]

        initialize_server if respond_to?(:initialize_server)
      end
    end
def load_server!
      if @server_name
        unless SERVERS.has_key?(@server_name)
          raise(UnknownServer,"Unknown server name #{@server_name}",caller)
        end

        extend SERVERS[@server_name]

        initialize_server if respond_to?(:initialize_server)
      end
    end
Loads the server configuration.

 @raise [UnknownServer]

 @since 0.3.0