Changes for version 0.30
- The conversion functions now ignore `undef` arguments and just return without doing anything.
- Strings are no longer modifed in-place unless the conversion subroutines are called in a void context.
- The conversion functions may optionally be called with no arugment when run in Perl 5.10 or higher, in which case they will instead act on `$_`.
- Encode::ZapCP1252 - Zap Windows Western Gremlins