Increased bzip2 compression level
Added package directory cleanup and relese number as option
Added robodoc end marker
Fixed document install directory and anonymous tar file
changed TAB to spaces
Added for Cygwin
Original script template from the cygwin page (http://cygwin.com/setup.html)
Added generic readme file for cygwin
removed CFLAGS from configure, let ./configure discover it
Made it compile under Cygwin native mode and hopefully under unix systems too.
