This covers everything:
- SotA zombie dialog (was mostly converted already, just needed module name update)
- The remaining minor World Conquest dialogs that had yet to be converted
- Tutorial character select
- Test scenario sample dialog
This also replaces any uses of "callback" in favour of "on_xxx".
Also backtracked the removal of wesnoth.get_recall_units, which is now available as wesnoth.units.find_on_recall - it's just more convenient than passing x=recall to wesnoth.units.find
Do not show traits in the wiki for Li'sar and Konrad, since they can't get them.
Li'sars new sprite seems to use rather a sword than a saber.
Copied defense animation for Li'sar from HttT.
Changed lua due to deprecation warning.
[ci skip]
