Karma: allow for karma/query on unicode strings

modules/Karma.py

@@ -135,7 +135,7 @@ class Karma(Module):
             INSERT INTO karma_log (key, delta, who, userhost)
             VALUES (?, ?, ?, ?)
             '''
-            conn.execute(sql, (key, value, nick, userhost))
+            conn.execute(sql, (key.decode('utf-8', 'ignore'), value, nick, userhost))
             conn.commit()
         except sqlite3.Error as e:
             conn.rollback()
@@ -216,7 +216,7 @@ class Karma(Module):
             FROM karma_values
             WHERE key = :key
             '''
-            value = conn.execute(query, {'key': key}).fetchone()
+            value = conn.execute(query, {'key': key.decode('utf-8', 'ignore')}).fetchone()
 
             if (value != None):
                 query = '''