+ regenerated html documentation.
+ add NCURSES_OPAQUE symbol to curses.h, will use to make structs
opaque in selected configurations.
+ move the chunk in lib_acs.c which resets acs capabilities when
running on a terminal whose locale interferes with those into
_nc_setupscreen(), so the libtinfo/libtinfow files can be made
identical (requested by Miroslav Lichvar).
+ do not use configure variable SHLIB_LIBS for building libraries
outside the ncurses directory, since that symbol is customized
only for that directory, and using it introduces an unneeded
dependency on libdl (requested by Miroslav Lichvar).
+ modify mk-1st.awk so the generated makefile rules for linking or
installing shared libraries do not first remove the library, in
case it is in use, e.g., libncurses.so by /bin/sh (report by Jeff
Chua).
+ revised section "Using NCURSES under XTERM" in ncurses-intro.html
(prompted by newsgroup comment by Nick Guenther).
