+ correct some ifdef's needed for the broken-linker configuration.
+ make debugging library's $BAUDRATE feature work for termcap
interface.
+ make $NCURSES_NO_PADDING feature work for termcap interface (prompted
by comment on FreeBSD mailing list).
+ add screen.mlterm terminfo entry -TD
+ improve mlterm and mlterm+pcfkeys terminfo entries -TD
+ finish changes to wgetch(), making it switch as needed to the
window's actual screen when calling wrefresh() and wgetnstr(). That
allows wgetch() to get used concurrently in different threads with
some minor restrictions, e.g., the application should not delete a
window which is being used in a wgetch().
+ simplify mutex's, combining the window- and screen-mutex's.
+ modify _nc_keypad() to make it switch temporarily as needed to the
screen which must be updated.
+ wrap cur_term variable to help make _nc_keymap() thread-safe, and
always set the screen's copy of this variable in set_curterm().
+ restore curs_set() state after endwin()/refresh() (report/patch
Miroslav Lichvar)
