standardise connectors

[Sowmayjain]

We need such comments above all the important function in the connector which can be used for documentation purpose.

/**
 * Title. (use period)
 *
 * Description. (use period)
 *
 * @access private
 *
 * @param {type} var Description.
 * @param {uint} var Description.
 * @param {address} var Description.
 *
 * @return {type} Return value.
 */