Changes as described by http://bugs.vcmi.eu/view.php?id=423#c759 ( note 759 in #423 )

config/hero_spells.txt

@@ -102,4 +102,12 @@
 141 47
 142 35
 143 54
+----- Extension Heroes
+145 22
+147 53
+150 54
+151 15
+153 15
+
+
 ----- The End;)

config/heroes_sec_skills.txt

@@ -53,7 +53,7 @@
 51 2 19 1 26 1
 52 2 18 1 22 1
 53 2 1 1 3 1
-54 2 1 1 2 1
+54 2 20 1 2 1
 55 1 22 2
 56 2 7 1 24 1
 57 2 7 1 18 1