Move option variable goldX (True: treat gold as BUC unknown, False:
treat gold as uncursed during BUCX filtering) from iflags to flags
so that it persists across save/restore.
Get rid of a few obsolete things from struct flags.
Try to make the 'cursesgraphics' option work although I don't think
that it was ever functional enough for anybody to use so probably
could have been removed instead.
Bump EDITLEVEL; any current save files are invalid.
Demote status from Beta to Work-in-Progress.
I modified src/sfdata.c manually (not included here) to get a full
build. The Unix Makefile.src needs to be taught when and how to
regenerate it.
adc455129d