+ modify win_driver.c to initialize acs_map for win32 console, so
that line-drawing works.
+ modify win_driver.c to initialize TERMINAL struct so that programs
such as test/lrtest.c and test/ncurses.c which test string
capabilities can run.
+ modify term-driver modules to eliminate forward-reference
declarations.
+ quiet some pedantic gcc warnings.
+ modify _nc_wgetch() to check for a -1 in the fifo, e.g., after a
SIGWINCH, and discard that value, to avoid confusing application
(patch by Eygene Ryabinkin, FreeBSD bin/136223).
+ add configure script --enable-sp-funcs to enable the new set of
extended functions.
+ start integrating patches by Juergen Pfeifer:
+ add extended functions which specify the SCREEN pointer for several
curses functions which use the global SP (these are incomplete;
some internals work is needed to complete these).
+ add special cases to configure script for MinGW port.
