[12461] Add stacking exception for spells 57494 and 57492
[12462] Fix order of gossip menu options. Thanks to X-Savior for testing
[12463] Handle GO Trap triggering like GO handling is expected

Thanks to Xfurry for testing.
Close cmangos/mangos-wotlk#111
[12464] Implement spell 57578

Also add stacking exception for spells 57598 and 57560