GaugeBook 0.7.4 beta now comes with cfg file

There seems to be a bug in the startup procedure, that causes problems when running GaugeBook for the first time. To avoid these problems, I released the 0.7.4 beta with a preconfigured cfg file (you find it in the cfg directory of your gaugebook folder). Only edit the cfg if you know what you're doing. The IP Address defaults to localhost, since I guess most people will check out GaugeBook on the machine running FSX anyway.