add the right user for gentoo
[COOK-3186] Add client_body_buffer_size and server_tokens attributes

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
[COOK-2925] Fix ChefSpec platform mocks

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
[COOK-2472] Update nginx to 1.2.9

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
[COOK-2312] Add additional mimetypes to gzip compress and fix RSS+XML compression

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
Merge branch 'upstream_master'