Changes for version 0.03

• OO.pm: Catch the case when a parameter is undef.
• Makefile.PL: Changed required version of Perl to 5.008.
• README: Clean up the file.
• OO.pm: POD is now ASCII. The podlators aren't ready for UTF-8.
• OO.pm: Corrected URL for 'CPAN Testers PASS Matrix' and removed links to AnnoCPAN (http://annocpan.org).
• OO.pm: Cleaned up and extended comments in the NOTES section.
• OO.pm: Added missing POD escapes, E<...>.
• OO.pm: Explicitly set POD encoding with '=encoding utf8'.
• OO.pm, README: Incremented version number.