+ correct prototype in manpage for vid_puts.
+ drop ncurses/tty/tty_display.h, ncurses/tty/tty_input.h, since they
are unused in the current driver model.
+ modify mvcur to use stdout except when called within the ncurses
library.
+ modify vidattr and vid_attr to use stdout as documented in manpage.
+ amend changes made to buffering in 20120825 so that the low-level
putp() call uses stdout rather than ncurses' internal buffering.
The putp_sp() call does the same, for consistency (Redhat #892674).
+ compiler warning fixes for test programs.
+ various build-fixes for test-programs with pdcurses.
+ updated configure checks for X packages in test/configure from xterm
#267 changes.
+ add configure check to gnatmake, to accommodate cygwin.
+ correct limit-check in wredrawln, accounting for begy/begx values
(patch by David Benjamin).
+ fix most compiler warnings from clang.
+ amend build-fix for OpenSolaris, to ensure that a system header is
included in curses.h before testing feature symbols, since they
may be defined by that route.
