Remove useless api->savdepth.

"Inactive"

This would cause an infinite loop (one of the first two continues would
*ALWAYS* occure)

terminated.

terminated.

available.

initialized (or not).

Only display help "icon" if there's a help buffer to display.
uinput() no longer barfs on a NULL prompt arg.

Have uifcini*() call window() to set a full-screen window for output.

this still may not be enough to deal with shrinking menus...

a program to disable the time display and effectivly run without calling
uscrn() first.  Not of course that the status bar needs dealing with too.

(Previously was returning the unedited string)

Add new input option K_MOUSEEXIT

(Must pass a pointer to the mouse_event, not the struct itself)

behavious better.
Add WIN_UNGETMOUSE which, when the mouse is clicked outside the window
ungets the mouse event and returns -2-WINMOUSE

before too.

which is either the height of the option list part plus borders or the
total list height, whichever is less.

Add colours to the uifc struct instead of using local static variables.
Hopefully, I haven't broken scfg or something.