DB/BWL: Fix eggs being clickable and Grethok should yell when engaged

data/sql/updates/pending_db_world/rev_1518089572435453900.sql

@@ -0,0 +1,7 @@
+INSERT INTO version_db_world (`sql_rev`) VALUES ('1518089572435453900');
+
+-- The eggs should not be clickable
+UPDATE `gameobject_template` SET `faction`='14' WHERE  `entry`=177807;
+
+-- Grethok the controller should shout "Intruders have breached the hatchery.." when engaged,
+UPDATE `smart_scripts` SET `event_type`='4' WHERE  `entryorguid`=12557 AND `source_type`=0 AND `id`=4 AND `link`=0;