=item 0.5 - May 07 2010

Cleanup unused debug modules.

=item 0.4 - May 06 2010

1. Fixed memory consumption (Bug #50154).
2. Added an array_minus function (proposed by Laszlo Forro <salmonix@gmail.com>).
3. Minor documetation changes.

=item 0.3 - April 04 2007

Fix scalar context with emty arrays args

=item 0.2 - March 09 2007

Removed same_members function.
Optimized code.

=item 0.1 - March 08 2007

First public release