Small updates from "classicdb"

NOTE:
  * Fixing dialogue of creature 3520 (Ol' Emma)
  * Fixing loot table of item 5523 (Small Barnacled Clam)
  * Removing random items from loot table of Small Barnacled Clam
  * Setting Clam Meat to drop 100%, instead of 99.8%
  * Fixed missing gossip menu options for some of the Elders in Lunar Festival game event
  * Improved start date of Lunar Festival event
  * Added missing NPC in Darnassus for Lunar Festival holiday event
  * Fixed holiday teleports of Lunar Festival not working.

Author´s: Cala, YTDB