Changed the name of gzip function as caused error with Database backup manager contrib.
Moved config options to its own group and created auto setup function, if you have a older install the autosetup will move existing configs to new location.
Modified code to improve compatibility with older php versions.

Gzip thanks to Jan Zonjee for the gzip function, its unchanged from his contibution Database backup manager apart from function name.
there is also a zip option if you have it & pear librarys available on your server.

Forum at http://forums.oscommerce.com/index.php?showtopic=303380

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