ini style config

It would be much nicer to have a ini config file to store the settings. That would not only be much nicer for the users (we would have no more messed up scripts), but the script could, after a few more minor changes, be used from multiple users on a computer (Unix style).

With this pull request you'll get the basic ini config file part. If this script should also be usable on a none Unix system (e.g. Windows) the paths need to be extended.