Implemented the log on and log off systems

This is a pretty straight forward port of the old version, including the
incredibly hacky server list. But I just need to remember that this is a
prototype.

client/channels.hpp

@@ -0,0 +1,8 @@
+#ifndef CHANNELS_HPP_
+#define CHANNELS_HPP_
+
+enum Channels {
+	SERVER = 0
+};
+
+#endif