* new directory doc where all .tex and related files
  are living

* new directory not_used for files that are not used 
  right now

* new file start.pl
    ensure_loaded from cug.pl to start.pl
    new predicate compile_grammar reconsult_grammar 

* parser.pl 
    is now inside module(parser). 
    parse predicate is changed (lots of things are handled
      by TkHdrug already)
    New predicates clean, count
    removed statistics
    removed startsymbol
    cf_grammar is not loaded from parser.pl but from start.pl

* new file declarations.pl 
    top/2 (s or q = vsecond/vfirst)

* interface.pl
    removed startsymbol (cf. top/2 in declarations)
    removed check_and_display_result (notused)
    removed display_semantics (in TkHdrug)
    removed morphological_prefix (notused)

* new file suite.pl which contains examples from examples.pl

* new file ops.pl containing operator definitions. These are
  separate so that they can be used for each fcompile(file)
