(XCurses is still untested)

Any *nix program using the standard build system will now compile with XCurses
if XCURSES is set like so:
gmake XCURSES=1

This is currently experimental... in theory it should work, but I'm not
betting the farm on 'er.

rather than a keypress check as it is supposed to be.

Added WIN_REDRAW and WIN_NODRAW mode flags for force/prohibit a full redraw
respectively.

Fixed bug in showbuf() that resulted in undefined background settings for
areas NOT used in the text buffer.

less than SCRN_LEFT)  typedef apy->scrn_wdith to an int in the macro to
avoid unsigned weirdness.

column display).

WIN_XTR no longer modifies the terminating option... it is KNOWN to have
a terminating \0 as the first char already.

Added mode K_TABEXIT mode flag to trat a TAB as a CR
WIN_FAT listboxes extend to the bottom of the screen.

Some cleanups.

Revert to magic number-based upop() (for now)

instead of assuming a local/global variable exists named scrn_width.

Elimiated status box flicker.

boxes of arbitrary size at arbitrary positions.

NOT limited by standard window padding.

top and bottom lines.

showbuf().

umonitor now uses showhelp() to display error log.

integers.

WIN_DYN forces the menu to return -2 after every keypress or kbhit timeout
(timeout set to one second)  Also, dynamic windows only have the text
of the options re-drawn, not the whole window.

Got rid of the kludgy signal stuff.

OS profiling!

FreeBSD realpath() to not clobber the rest of our structure.

Added uifcinid() prototype (for libdialog implementation).