GLI config file

[kjdon]

Currently GLI has changed to use one config file for all greenstone 2 and/or 3 installations.

If you are regularly switching between multiple greenstone 2 or 3 or both installations, then you have to keep entering your library_url.

SHould we have one file per installation? eg it could have the version number in the file name.

And the greenstone uninstaller should delete the config file (or the whole .gli directory?? - not so good ifyou have other installations using it)