_upstream_max_fails and _upstream_fail_timeout directives

[Manlio Perillo]

Hi.

Starting from Nginx 0.5.0, the directives "proxy_upstream_max_fails",
"proxy_upstream_fail_timeout", "fastcgi_upstream_max_fails",
"fastcgi_upstream_fail_timeout", "memcached_upstream_max_fails", and
"memcached_upstream_fail_timeout" are no more supported.

However they are still supported in the code.
What is the reason?



Thanks  Manlio