Log Message:
Update to 6.0.1

Changelog:
2012-07-25 Erwin Waterlander <waterlan@xs4all.nl>
        * Version 6.0.1

2012-07-20 Erwin Waterlander <waterlan@xs4all.nl>
        * Makefile: Target 'html' makes also Dutch and Spanish HTML manuals.

2012-07-18 Erwin Waterlander <waterlan@xs4all.nl>
        * manual: Update for options -n and -o. Describe the new permissions of
          the output file in new-file and old-file mode.
        * README.txt: Added references for the findutils package for Windows
          and DOS to enable recursive conversions on those platforms.

2012-05-20 Erwin Waterlander <waterlan@xs4all.nl>
        * common.h: Fix compiler warnings "implicit declaration of function
          'strcasecmp'". Thanks to Michael Schindler
          <k-m_schindler@sourceforge.net>.

2012-05-11 Julio A. Freyre-Gonzalez <jfreyreg@gmail.com>
        * Update Spanish messages and manual.