library/Relay/Adapter/LowSocket.php: Define socket type in constructor.
library/Relay/Adapter/LowSocket.php: Minor style fix.
library/Relay/Loader.php: Minor style fix
adding library/Relay/Irc/Response.php
library/Relay/Irc/Message.php: Remove the response parts. Defined in Relay_Irc_Response
library/Relay/Irc/Message.php: make parameter optional in constructor.
library/Relay/Irc/Message.php: Initialize member variables.
library/Relay/Client.php: Use new Relay_Irc_Response