* Added sys_stat_attr(). * Added sys_open_attr_dir(). Extended the directory functions to be able to deal with attribute directories. * Init the current directory, so we can use it (the support is there already). * Use our open modes instead of the platform ones. * Added O_NOTRAVERSE support to sys_open(). git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11586 a95241bf-73f2-0310-859d-f6bbb57e9c96