Various fixes and added professions/class trainers

Map/Tooltips.lua

@@ -1088,9 +1088,17 @@ function T:Show(pin)
     spiritHealer="Spirit Healer",
     stableMaster="Stable Master",
     vendor="Vendor",
+    classTrainer="Class Trainer",
+    professionTrainer="Profession Trainer",
     rareMob="[Rare]"
   }
   local permanentLabel=permanentLabels[pin.role]
+  -- Trainers refine the generic label with the specific class/profession, e.g.
+  -- "Warrior Trainer" / "Cooking Trainer".
+  if permanentLabel and (pin.role=="classTrainer" or pin.role=="professionTrainer") and type(pin.trainerKey)=="string" and pin.trainerKey~="" then
+    local key=pin.trainerKey
+    permanentLabel=string.upper(string.sub(key,1,1))..string.sub(key,2).." Trainer"
+  end
   if permanentLabel then
     tooltip:SetOwner(pin,"ANCHOR_CURSOR")
     tooltip:ClearLines()