- partial implementation of scholar skill (spell exchange works, but no message)

- some fixes

config/buildings2.txt

@@ -48,11 +48,10 @@ CASTLE 1
 10
 11
 12
-13
+13
 17
 21
-22
-23
+22
 -1
 27
 28
@@ -211,6 +210,10 @@ CASTLE 7
 26
 END
 CASTLE 8
+-1
+27
+28
+16
 34
 41
 6
@@ -226,6 +229,7 @@ CASTLE 8
 3
 4
 5
+15
 14
 17
 35
@@ -238,6 +242,7 @@ CASTLE 8
 11
 12
 13
+29
 END
 EOD
 
@@ -260,4 +265,4 @@ EOD
 
 EOD
 
-Buildings not mentioned in the file will be blitted as first. File can contain data for any count of castles.
+Buildings not mentioned in the file will be blitted as first. File can contain data for any count of castles.