pst2pdf.pl --------
0.10  2010-01-04  allow using the package pst-exa
0.09  2009-10-01  allow pspicture*
0.08  2009-08-28  test for png files (only for Linux)
0.07  2009-07-24  - fix bug with \begin{postscript} and following
                    pspicture environment
                  - add some more documentation
0.06  2007-08-28  - fix bug with \begin{pspicture} and \pspicture
0.05  2007-07-05  - allow different extensions for the source file
                    e.g. tex, ltx
		  - ignore verbatim environment
		  - better log file support
0.04  2007-07-04  allow all \begin ..\end sequences anywhere 
                  in a line, see testcase 
0.03  2007-06-21  fix nested environments 
0.02  2007-06-20  first (public) version 
