Add AuthConfig as a valid Options argument

Treat "foo-bar" as plain text, regardless of whether "foo" or "bar" alone is a keyword.
Treat foo_module as a valid LoadModule argument

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1331717 13f79535-47bb-0310-9956-ffa450edef68