First step of comment style refactoring to doxygen-style.

src/server/scripts/World/boss_emerald_dragons.cpp

@@ -304,7 +304,7 @@ class boss_ysondre : public CreatureScript
  * --- Dragonspecific scripts and handling: LETHON
  * ---
  *
- * TODO:
+ * @todo
  * - Spell: Shadow bolt whirl casts needs custom handling (spellscript)
  */
 

src/server/scripts/World/go_scripts.cpp

@@ -251,7 +251,7 @@ class go_tablet_of_the_seven : public GameObjectScript
 public:
     go_tablet_of_the_seven() : GameObjectScript("go_tablet_of_the_seven") { }
 
-    //TODO: use gossip option ("Transcript the Tablet") instead, if Trinity adds support.
+    /// @todo use gossip option ("Transcript the Tablet") instead, if Trinity adds support.
     bool OnGossipHello(Player* player, GameObject* go)
     {
         if (go->GetGoType() != GAMEOBJECT_TYPE_QUESTGIVER)
@@ -1072,7 +1072,7 @@ public:
         Quest const* qInfo = sObjectMgr->GetQuestTemplate(QUEST_PRISONERS_OF_WYRMSKULL);
         if (qInfo)
         {
-            //TODO: prisoner should help player for a short period of time
+            /// @todo prisoner should help player for a short period of time
             player->KilledMonsterCredit(qInfo->RequiredNpcOrGo[0], 0);
             pPrisoner->DisappearAndDie();
         }

src/server/scripts/World/npcs_special.cpp

@@ -881,7 +881,7 @@ void npc_doctor::npc_doctorAI::UpdateAI(uint32 diff)
 ## npc_garments_of_quests
 ######*/
 
-//TODO: get text for each NPC
+/// @todo get text for each NPC
 
 enum Garments
 {