CUPID: fix up sun255 to work with new stardoc system.

This was very easy. Ran the smurf sun_master.tex file through the
latexsupport script 'starlink_perl_fixup.pl'. Then removed the
\staroneline command, removed some unused definitions, changed some
\tt to \texttt commands and used the previously-defined \menuitem in
make_quickdes.
SST: use \texttt instead of \tt around quote characters.