[2857] Allow Jeklik to be able to start attack movement using MMaps

Also restore Malygos attack movement to the original state

Finally fix the respawn time for the Uldaman treasure chest, as requested by evil-at-wow
[2858] Implement HealedBy method. Expects CMangos 12451
[2859] Add some improvements to Black Temple

* Allow Mother Shahraz to use Fatal Attraction
* Improve the Illidari Council health control
* Improve Demon Fire for Illidan
[2860] Allow Twin Emperors to use HealdedBy function
[2861] Drop some special gossips which are now handled by database

The following scripts are dropped:
mount vendor
tabard vendor
alchemy profession npc
Sayge - darkmoon faire

Signed-off-by: Xfurry <xfurry@scriptdev2.com>