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/config.cpp

@@ -167,6 +167,8 @@ void Config::AssignValues(bool stdout_is_closed)
 	base_url_static       = Text(L"base_url_static");
 	base_url_common       = Text(L"base_url_common");
 
+	base_url_redirect     = Bool(L"base_url_redirect");
+
 	NoLastSlash(base_url);
 	NoLastSlash(base_url_static);
 	NoLastSlash(base_url_common);