Log Message:
Update to 0.5.1, with a patch from the author to make it compile.
Changes:
2003-12-13  Version 0.5.1
  * Procmail usage instructions added to manpage.
  * Fixed missing <algorithm> header in detector.cc (thanks to Jerome Warnier).

2003-11-26  Version 0.5.0
  * ENCA support added (thanks to Volodymyr M. Lisivka).
  * -I and -O options added to exclude some charsets from processing (thanks
    to Ingvarr Zhmakin).