GUI Improvement, remove favourites panel, port required

* Improved the layout of the option panels
* Removed the favourites panel and placed it onto the same panel as the
Server options - this makes more sense as you'll be able to see what
you're connecting to when you press connect.
* Added Port to the server options, defaults to port 6667
* Added Port requirement when creating an IRCServer&Connection.
* Added Real name to the server options