don't destroy the entire dialplan during 'reload', just atomically replace it like 'extensions reload' does (issue #6047)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@19345 65c4cc65-6c06-0410-ace0-fbb531ad65f3

pbx/pbx_config.c

@@ -1,7 +1,7 @@
 /*
  * Asterisk -- An open source telephony toolkit.
  *
- * Copyright (C) 1999 - 2005, Digium, Inc.
+ * Copyright (C) 1999 - 2006, Digium, Inc.
  *
  * Mark Spencer <markster@digium.com>
  *
@@ -1808,7 +1808,6 @@ int load_module(void)
 
 int reload(void)
 {
-	ast_context_destroy(NULL, registrar);
 	if (clearglobalvars_config)
 		pbx_builtin_clear_globals();
 	pbx_load_module();