Also set the role and affiliation of users already in the chan

Add missing errno.h includes

Document the shutdown procedure

Fix a bug when receiving a topic change

The number of arguments is not always the same

Possibility to change a channel's topic

Convert received modes into roles and affiliations

Do not throw an exception when recv returns and error, just close the socket

Use isupport informations to know the user modes when joining

Also remove the duplicate send_self_join methods, user only send_user_join

Basic isupport support

CHANMODES and PREFIX only

Handle nickname conflicts by sending the correct XMPP error presence

Remove disconnected IrcClients

Keep a "connected" state in the SocketHandler class

Be verbose about the connection status, and some errors

Handle topic changes

Check that channels are joined before acting on objects in it

Shutdown cleanly on SIGINT

Do not mismatch password and hostname in the config error help message

connect() returns a boolean

Read a variable number of bytes, 4096 by default

Correctly send the part message to IRC

By fixing a namespace when looking for an XML element containing that message