Don't move view content position item 0 is being replaced

Don't move view content position item 0 is being replaced

Usually if item 0 moves down, the next item becomes the first visible
item and all content moves down. Don't do this if another item is
moving up to take its place.

Change-Id: If625cfc0eaa70fd1094c7bc0fdd29f5f56766a42
Reviewed-on: http://codereview.qt.nokia.com/2260
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Martin Jones <martin.jones@nokia.com>