Revision history for Perl extension WWW-Scraper-ISBN-Booktopia_Driver.

0.03	14/09/2010
        - protect against amending undefined strings.

0.02	08/09/2010
        - weight is actually given in grammes not kilogrammes as stated.
        - all matches are now case insensitive.
        - fixed support for ISBN10 searches.

0.01	30/07/2010
        - initial release