History dialog: focus third (second) item on show

[ProgerXP]

Make it so that when Alt+H dialog appears, the list of files is focused and the second item from top (i.e. target for Alt+G) is focused. Thus pressing Up/Down arrow keys changes selection in the list without the need to click inside the list with the mouse to focus it.

If the list has fewer entries than 2 (1 or 0) then do whatever is easier to implement (e.g. don't focus at all, or focus 1st item).

[cshnik]

Done.

1. First item is selected when current document is untitled or history size < 2.
2. Second item is selected when document is not untitled.
3. Fixed n2e_OpenMRULast()-method (handles Alt+G command): recent files were not swapped.

[ProgerXP]

Good addition.

[ProgerXP]

Add 1 to the focused item's index so that History focuses the item immediately following the one subject to Recall (#8). Currently it focuses exactly the Recall item. This way, Alt+G opens previously opened file and Alt+H,Enter opens the file that was opened before the previously opened file.

[cshnik]

Fixed.