changes in Version 3.13

[Jeff Kingston]

These may be found at the end of file "whatsnew" in the root
directory of the Lout 3.13 distribution.  Here's an extract:

    *** IMPORTANT: TWO CHANGES THAT ARE NOT UPWARDLY COMPATIBLE ***

    (1)  The @Abstract symbol in technical reports now comes before the
         // symbol, not after it.  See User's Guide for details.

    (2)  Setup file arrangements have changed.  You now need to have one
         @SysInclude line for each package you use.  For example,

            Previous versions           Version 3.13
            ---------------------------------------------

            @SysInclude { eq }          @SysInclude { eq }
            @SysInclude { ddoc }        @SysInclude { diag }
                                        @SysInclude { doc }

         Import clauses in mydefs files also have to change:

            Previous versions           Version 3.13
            ---------------------------------------------

            import @DocumentLayout      import @BasicSetup
            import @CPrint              import @CPSetup
            import @DiagramPrint        import @DiagSetup

         Sorry for the inconvenience, but the old system was inconsistent
         and was tending towards an unsustainable combinatorial explosion
         of setup files.  No changes *within* documents are needed, and
         these new arrangements do not affect the content of the packages.
         The user's guide documents it all.

Jeff