Release of version 2.4.

This is a full release which features a few small bug fixes.

Upgrading from any previous version to v2.4 is easy - just replace the ubh executable. Your existing .ubhrc and .newsrc files are entirely forward compatible with v2.4. NOTE: Versions 2.3 and later require String::CRC32.

Version  Date        Description
-------  ----------  --------------------------------------------------------
  2.4    03/05/2002  Misc bugfixes (crosspost elimination w/ -z, and yenc
                     detection).