PR29755: mod_usertrack gets skipped when modules return a status code from

their fixup hook, and headers are also not sent on non-2xx responses.

Submitted by:  Sami J. Mäkinen
Reviewed by: Eric Covener (modified to just run REALLY_FIRST)



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1154620 13f79535-47bb-0310-9956-ffa450edef68