1.2     2008-04-20

 * The constructor function 'new' has been replaced with calling the module
   itself as a function.  The old method is still supported for backwards
   compatibility, but is now deprecated.
 * New group codes for Afghanistan, Iceland, Latvia, Lithuania, Macedonia,
   Netherlands.
 * Updated ranges for Colombia, German speaking area, Ukraine.
 * Add new 'issn' module to support validating and normalizing ISSN codes.
 * Fix accidental setting of global variable 'err'.
 * Switch test suite from Lunit 0.3 to Lunit 0.4alpha.

1.1     2007-12-12

 * New group codes for Bahrain, Malta, Mexico, Romania.
 * Updated ranges for Russia, Singapore.
 * Much less test data to make the source packages a lot smaller.
   The 100,000 ISBNs were not really necessary.

1.0     2007-09-07

 * Initial release.
