PATCH: Scroll editor window beyond last line

[foxmuldr]

See:
https://sourceforge.net/tracker/index.p ... tid=979963

Patch available here:
https://sourceforge.net/tracker/?func=d ... tid=979962

Summary:
By default, when the editor scrolls to the last line of a large file, it will not scroll any further. This setting allows the editor to scroll beyond the last line, so that blank space appears beyond the last line in the editor window. This allows the current editing line to be somewhere near the middle or top, rather than being forced to be at the bottom.

- Rick

[foxmuldr]

Patch originally written for 4454, but works correctly when applied against 4459.