slurp() now accepts an 'iomode' option to control how the file is
opened. [Graham Barr]In the openr() and openw() file methods, we now croak() instead of
die() so that the error messages are more useful. [Ian Sillitoe]Allow subclassing, by adding dir_class() and file_class() static
methods, allowing them to be overridden. [Matt Trout & John LoVerso
& Michael Schwern]Fixed a testing failure that could occur whenever testing in a
directory path that contains symlinks (e.g. /tmp on Mac OS X).Added a 'no_hidden' parameter for children() [EDENC EDENC@cpan.org]
Fixed the heading for the is_relative() POD section. [CUB cub.uanic@gmail.com]