fixed: security vulnerability in 'ln' winix function

a user could create a hardlink to any file and the new link 
       had user_id, group_id and permissions the same as for new generated files,
       this allowes to overwrite any existing file in the filesystem,
       now user_id, group_id, permissions are the same as from the oryginal file



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@941 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/system.cpp

@@ -1207,6 +1207,8 @@ int System::FollowAllLinks(const std::vector<Item*> & current_dir_tab, const std
 		}
 		else
 		{
+			// !! CHECK ME
+			// FollowLink is using link_to_temp temporary variable too
 			res = FollowLink(current_dir_tab, link_to_temp, out_dir_tab, out_item);
 			link_to_temp.clear();