* Eliminate string arguments to OPENTEXTSTREAM #666
Empty string replaced by NIL, mostly. Otherwise, string wrapped in OPENSTRINGSTREAM. TEDIT hasn't yet been modified, just all the callers.
* INDEX, NGROUP: move to obsolete #667
* HELPSYS: Add proper FILETYPE property
* ROOMS files: Also updated for TEDIT string arguments
* Eliminate implicit calls to \FILEOUTCHARFN
Also, update DATE to modern readtable (don't know what it does), add LLETHER to EXPORTFILES in FILESETS (may also need the file that exports pup records).
* Further fixups for EXPORTFILES
also fixing/compiling PLAINTEXTSTREAM
* Remove garbage files DATE and PLAINTEXTSTREAM from checkin
Co-authored-by: Larry Masinter <LMM@acm.org>
* Duplicate POSTSCRIPT files in LispUsers and LispUsers/POSTSCRIPT
* DICOLOR on LispUsers is old version uncompiled 1985; version on internal library is newer
* missed PS-TTY in the postscript files
* Fix .gitignore no longer need diff filter; remove odd extra ~ file
* Verified POSTSCRIPT lispusers subdirectory redundant (not same hash because of EOL. POSTSCRIPT-old apparently was older version, copyright not venue
* Save postscript-old in obsolete
* move internal/library/DICOLOR to obsolete
it took a long time to figure out how to restore old versions, using the './scripts/restore-versions file'. Now that it's there and tested it should be ok to remove them from new 'git clone' of medley
* Not 100% sure about this one, looks like proposed change not sure if it was taken o abandoned; no referenced
* YREM.CM was used with old loadup process; P4A.scn isn't referenced, looks like junk
