[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/defaults.h b/include/common/defaults.h
index cada729..9b8d806 100644
--- a/include/common/defaults.h
+++ b/include/common/defaults.h
@@ -1,23 +1,23 @@
 /*
-  include/common/defaults.h
-  Miscellaneous default values.
-
-  Copyright (C) 2000-2009 Willy Tarreau - w@1wt.eu
-
-  This library is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Lesser General Public
-  License as published by the Free Software Foundation, version 2.1
-  exclusively.
-
-  This library is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public
-  License along with this library; if not, write to the Free Software
-  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
-*/
+ * include/common/defaults.h
+ * Miscellaneous default values.
+ *
+ * Copyright (C) 2000-2010 Willy Tarreau - w@1wt.eu
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, version 2.1
+ * exclusively.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
 
 #ifndef _COMMON_DEFAULTS_H
 #define _COMMON_DEFAULTS_H
@@ -57,9 +57,6 @@
 // max # args on a stats socket
 #define MAX_STATS_ARGS  16
 
-// max # of added headers per request
-#define MAX_NEWHDR      10
-
 // max # of matches per regexp
 #define	MAX_MATCH       10
 
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
  */