New BSD 4.4 curses is coming.

New BSD 4.4 curses is coming.

What is done:

1) A *lot* of work to make this curses compatible with old programs :-(
IMHO, this guys from Berkeley wants to kill all old curses-related soft.
It was hard work, especially for all that junk from /usr/games.
Now all system curses pgms runs OK without any modifications.
I don't test /usr/ports pgms. If smbdy find any curses error there,
please contact me.

2) Make this curses 8-bit clean. This jobs already done at 95%
by Berkeley guys, so I do only 5%.

3) Fix error with addch() yet one char in lower left screen corner.
addch() must return ERR, if window not scrollable. Some pgms use this
feature.

4) Fix error with EOF returned in getch/getstr.