[MEDIUM] config: remove the limitation of 10 reqadd/rspadd statements

Now we use a linked list, there is no limit anymore.
diff --git a/include/common/mini-clist.h b/include/common/mini-clist.h
index 7d16b5e..fa0537c 100644
--- a/include/common/mini-clist.h
+++ b/include/common/mini-clist.h
@@ -1,6 +1,6 @@
 /*
  * list.h : list manipulation macros and structures.
- * Copyright 2002-2008 Willy Tarreau <w@1wt.eu>
+ * Copyright 2002-2010 Willy Tarreau <w@1wt.eu>
  *
  */
 
@@ -33,6 +33,12 @@
 	struct list *ref; /* pointer to the target's list entry */
 };
 
+/* a word list is a generic list with a pointer to a string in each element. */
+struct wordlist {
+	struct list list;
+	char *s;
+};
+
 /* First undefine some macros which happen to also be defined on OpenBSD,
  * in sys/queue.h, used by sys/event.h
  */