* doc/meref.me: Fix description of .GS request.
* src/roff/troff/troff.man: Fixing typo.
Adding the `grn' preprocessor for gremlin graphic files.
* src/preproc/grn/*: This is the Berkeley distribution written by
David Slattengren and Barry Roitblat, adapted to groff by Daniel
Senderowicz and Werner Lemberg.
* doc/grnexampl.{me,g}: A sample for grn.
* src/roff/groff/groff.cc: Added support for grn. It can be now
called with the switch `-g'.
* src/roff/groff/groff.man: Updated.
* src/roff/grog/grog.{man,pl,sh}: Updated.
* NEWS: Updated.
12 files changed: