added: now we have a fourth part in permissions (guests)

e.g.: 07555 means:
           7 for owner
           5 for group
           5 for others
           5 for guests (not logged users)
added:     the sticky bit for directories
           e.g. permissions to a directory with a sticky bit set
           can be set to: 017555
rewritten: rm/mv winix functions to correctly understand the sticky bit
added:     Dir::FollowLink() recognizes ".." and "." now
           consequently System::FollowAllLinks recognizes it too
added:     umask -- calculating privileges for new files/directories
           all users have their own umask (in meta)
           and there is one in the config
           (for guests and when a user has not definied its own one)
removed:   mount option: only_root_remove



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@801 e52654a7-88a9-db11-a3e9-0013d4bc506e

functions/adduser.cpp

@@ -9,6 +9,7 @@
 
 #include "adduser.h"
 #include "core/slog.h"
+#include "core/plugin.h"
 
 
 
@@ -112,10 +113,14 @@ void AddUser::MakePost()
 	{
 		if( system->users.AddUser(user) )
 		{
-			if( !cur->session->puser )
-				system->users.LoginUser(user.id, false);
-
 			log << log2 << "AddUser: added a new user: " << user.name << logend;
+
+			if( !cur->session->puser )
+			{
+				system->users.LoginUser(user.id, false);
+				log << log2 << "AddUser: now logged as: " << user.name << logend;
+				plugin.Call(WINIX_USER_LOGGED);
+			}
 		}
 		else
 		{