Warning fixes and some random cleanup here and there

src/server/scripts/Northrend/dragonblight.cpp

@@ -56,10 +56,10 @@ public:
         return true;
     }
 
-    bool OnGossipSelect(Player* player, Creature* /*creature*/, uint32 /*uiSender*/, uint32 uiAction)
+    bool OnGossipSelect(Player* player, Creature* /*creature*/, uint32 /*sender*/, uint32 action)
     {
         player->PlayerTalkClass->ClearMenus();
-        if (uiAction == GOSSIP_ACTION_INFO_DEF+1)
+        if (action == GOSSIP_ACTION_INFO_DEF+1)
         {
             player->CLOSE_GOSSIP_MENU();
             player->SendMovieStart(MOVIE_ID_GATES);