2006-03-21:  Added -for-pack option to Makefile and cleaned up
             distribution for a new public release.

2006-03-13:  Accept uppercase booleans.

2006-03-13:  Sexplib now accepts capitalized booleans.

2006-03-03:  Added customizable indentation levels.
             Improved documentation.
             Fixed API-problem concerning backward compatibility.

2006-03-03:  Added customizable indentation levels.
             Improved documentation.

2006-03-01:  Added a missing flush for string conversions with a buffer.

2006-02-08:  Eliminated unused variable warnings in Sexplib-generated code.

2006-01-11:  Added functions for pretty-printing to buffers.  Improved
             performance of outputting S-expressions to channels.

2006-01-09:  Added functions load_sexp and load_sexps.

2006-01-04:  Changed float conversion from %E to %G (more readable).

2005-12-28:  Made machine representation for S-expressions more compact

2005-12-15:  Fixed a problem appearing with OCaml-release 3.08.4:  CamlP4
             obviously performs more strict checking on some constructs
             now and crashed with an exception when generating
             S-expression code for records containing only one field
             ("singleton tuple problem").  This problem is fixed now.

2005-11-25:  Fixed problem with type variables that could not be generalized.

2005-11-23:  Added a missing case in type definitions (path alias)

2005-11-17:  Major release: 2.0

             Fixed a major design problem.  The user now has to pass lex
             buffers instead of channels to input-functions.  Reason:
             trailing characters in channels were lost due to ocamllex
             buffering them in the non-exposed lex buffer.  This lex
             buffer is now exposed.  The functions have been renamed
             ("input_X" -> "scan_X") to reflect this change.

2005-11-16:  Added label to conversion function "input_cnv_sexps".

2005-11-11:  Fixed a bug in the pretty-printer: strings in atoms were
             not escaped in the function "to_string_mach" (and therefore
             also "to_string").

2005-11-07:  Initial release.