changed: the way how plugins work

all your plugin functions can have signature either:
void my_function(PluginInfo & info); or
void my_function();
only the main Init should have:
extern "C" void Init(PluginFunction & info);

added: directory 'plugins' for plugins
added: 'stats' plugin
		  


git-svn-id: svn://ttmath.org/publicrep/winix/trunk@624 e52654a7-88a9-db11-a3e9-0013d4bc506e

main/main.cpp

@@ -38,6 +38,8 @@ Plugin  plugin;
 
 void signal_term(int)
 {
+	plugin.Call(WINIX_CLOSE);
+
 	req_controller.SaveSessions();
 	req_controller.DeleteAllPluginsData();
 	log << log1 << "cmslu stopped" << logend << logsave;
@@ -103,6 +105,7 @@ int main(int argv, char ** argc)
 
 	// load plugins before loading sessions - req_controller.LoadSessions()
 	plugin.LoadPlugins(data.plugin_file);
+	plugin.Call(WINIX_PLUGIN_INIT);
 
 	request.Init();