Use per session directories in /var/run/gdm to hold user's X11
    
    2008-07-28  William Jon McCann  <jmccann@redhat.com>
    
    	* daemon/gdm-display-access-file.c (create_temp_dir),
    	(_create_xauth_file_for_user):
    	Use per session directories in /var/run/gdm to
    	hold user's X11 authorizations database.  This
    	allows us to avoid having a writable /var/run/gdm and
    	still allows libXau locking to work.
    
    
    svn path=/trunk/; revision=6334