New in version 2.4

* a GNUplot backend contributed by Carsten Hammer
* a first DXF backend contributed by Carsten Hammer
  ( a  more complete version will be available
    in one of the next release. If you have urgent
    need for it contact Wolfgang.Glunz@zfe.siemens.de )
* a OS/2 Metafile backend contributed by Christoph Jaeschke
* a PDF backend
* no shell script anymore. Pure C++ programm. 
* also runs on DOS, OS/2.
* tgif backend extended to support rotated text. 
  (needs tgif version >= 3.0 pl 7 )
* some bug fixes