DB/Quest: improvements for Test at Sea:

- Prevent player from entering combat when using the quest item.
- The targeted NPCs should only yell sporadically.

sql/updates/world/3.3.5/2016_09_12_03_world.sql

@@ -0,0 +1,2 @@
+--
+UPDATE `smart_scripts` SET `event_chance`=5 WHERE `entryorguid`=24120 AND `id`=1;

src/server/game/Spells/SpellMgr.cpp

@@ -3365,6 +3365,7 @@ void SpellMgr::LoadSpellInfoCorrections()
                 break;
             case 42490: // Energized!
             case 42492: // Cast Energized
+            case 43115: // Plague Vial
                 spellInfo->AttributesEx |= SPELL_ATTR1_NO_THREAT;
                 break;
             case 46842: // Flame Ring