webos-preferred-versions: Keep the lists in alphabetical order

Also add a reminder to do so.

Open-webOS-DCO-1.0-Signed-off-by: Herb Kuta <herb.kuta@lge.com>

Change-Id: I584ef651312be3b5768fdb64ce507e8592edf60b
Reviewed-on: https://g2g.palm.com/1654
Reviewed-by: Susan Montooth <susan.montooth@lge.com>
Tested-by: Susan Montooth <susan.montooth@lge.com>