DB/Player: Restore 2 lost start spells

sql/updates/world/4.3.4/2017_03_17_02_world.sql

@@ -0,0 +1,6 @@
+--
+DELETE FROM `playercreateinfo_cast_spell` WHERE `spell` IN (688, 73523);
+INSERT INTO `playercreateinfo_cast_spell` (`raceMask`, `classMask`, `spell`, `note`) VALUES
+(0, 256, 688, 'Warlock - Summon Imp'),
+(16, 925, 73523, 'Undead - Rigor Mortis');
+--