fixed: base_url_redirect config option was not read from the config file

and was not used when checking for base url redirect
fixed: return values from plugins should be given in a special structure
       they were remembered in plugin object (ret_false, ret_true)
       and consequently were not thread safe
       now all plugin.Call() methods return PluginRes structure 
       in which there are ret_false and ret_true variables       
changed: small refactoring in AddUser winix function



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@827 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/pluginmsg.h

@@ -221,7 +221,11 @@
 // in l1 you have the old user_id
 #define WINIX_USER_REMOVED					31020
 
-
+// here you can check if the domain part of the URL address is correct
+// if no then set cur-request->redirect_to
+// and winix will do a 'base url redirect' without making any winix functions
+// the session pointer in info is null
+#define WINIX_BASE_URL_REDIRECT				31030
 
 
 // values from 4000 - 4099 reserved for 'thread' plugin