Rudimentary native Mac client support.
Edit Client.cpp for the time being, there is a comment that says changeme. It accepts either DNS or IP as valid arguments. At some point we can save this per client in the basic auth.
To login, change eqhost to your loginserver as per normal for old clients

The paramaters to start EverQuest are as follows

./EverQuest patchme *user*/*pass*

where *user* is your username, and *pass* is your password. All passwords are SHA1'd on the server but this opens the client to snooping. We'll deal with that later.

Identified the purpose of two opcodes in login.