This release mainly fixes some bugs and tidies things up, but there
are a few new facilities:

A spreadsheet interface has been added, which can communicate with
Excel (if running on the same machine, which must be a PC) and/or
read files from an appropriate directory. The primitive "excelTable"
is used to read spreadsheets into SDML.

Improved printing facilities are provided, allowing the printer to be
configured from the SDML launcher or a sector model browser. The only
formats currently accepted are text (ASCII) and PostScript. Text or
PostScript is accepted for rules and entire rulebases; PostScript is
required for all other printing at present.

The concept of a "base directory" has been introduced. The base
directory must contain a file called "sdml.ini" which is particular
to the organisation and release (such encrypted files can be
generated automatically). The base directory should contain a
sub-directory for spreadsheets (sheets). SDML tries to determine the
base directory automatically when SDML starts up; otherwise the user
will have to specify it in order to use SDML.

Primitive "any" has been re-introduced, as a fast mechanism for
choosing an arbitrary (but not random) set of bindings for variables
such that a clause is true.

The size of points in scatter and line charts can be modified using a
menu in the chart window.