Merge r351614 from 2.2:

It is mod_authN_file, not mod_auth_file

Merge r356658 from 2.2:
Mention mod_authz_user and mod_version, a new module in 2.2.

Merge r370945 from 2.2:
Fix spelling of occur.
Submitted By: Ãvar Arnfjörð Bjarmason <avarab gmail.com>

Merge r559984 from 2.2:
Fixed typo "separate" from PR 40454

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@654778 13f79535-47bb-0310-9956-ffa450edef68