pagespeed/ngx_pagespeed — pull request #670 by oschaaf (2014-04-19 21:28:54+00:00)
Title: downstream-caching-headers: make nginx 1.5.9+ pass tests as well

- Fix a mistake I made in https://github.com/pagespeed/ngx_pagespeed/pull/653
This is the primary reason the test starts failing, the base fetch
handled `kPreserveOnlyCacheControl` in the wrong way.
- Use `ps_set_cache_control` when copying a Cache-Control header
to nginx, as `r->headers_out.cache_control` is where modules running
after us might expect it
- Exclude a few more lines from curl's verbose output in the keep-
alive tests that I came accross when testing on ubuntu 13.10
Desktop.

Note that this does not deflake the downstream cache test yet, I will
look at that in a follow-up.