Added ability to add the following Talismans:
- Classic Mode (added to any level)
- Save All Lemmings (added only to levels that don't have zombies)
- Kill All Zombies (added only to levels that do have zombies)
- Play Without Pressing Pause (added to any level)
"Are you sure?" dialog now displays the selected pack, to help prevent accidental changes to a different pack
"# Level modified by NL QuickMod Tool" line now displays as 'SLX' instead of 'NL', and is only added to a level file once
Added ability to change author
Added ability to update all water objects to SuperLemmix versions