DB/Spell linked spell: (Gundrak/Eck) Spell Eck Spit (55814) triggers Eck Residue (55817). Should fix the related achievement.

Closes #673

sql/updates/world/2011_02_23_9_world_spell_linked_spell.sql

@@ -0,0 +1,3 @@
+DELETE FROM `spell_linked_spell` WHERE `spell_trigger` = 55814 AND `spell_effect` = 55817 ;
+INSERT INTO `spell_linked_spell` (`spell_trigger`,`spell_effect`,`type`,`comment`) VALUES
+(55814, 55817, 1, 'Eck Residue');