DB/Conditions: Add gossip option conditions for Warrior trainers.
DB/Conditions: Add option conditions for Druid trainers.
DB/Conditions: Replace condition accidently removed.
DB/Conditions: Add option conditions for Hunter trainers.
DB/Conditions: Add option conditions for Rogue trainers.
DB/Conditions: Add option conditions for Priest trainers.
DB/Conditions: Add option conditions for Shaman trainers.