Make documentation reflect reality of what the code does - in that LoadModule

Make documentation reflect reality of what the code does - in that LoadModule
and LoadFile can be declared inside a vhost configuration.

minfrin vetoed restricting LoadModule to server context as we do in 1.3.
See Message-ID: <DE0E3427-46F0-4AF4-94E8-5297EDF9A58D@sharp.fm>

* docs/manual/mod/mod_so.xml: Denote virtual host context.
* docs/manual/mod/mod_so.html.en, docs/manual/quickreference.html.en: Update
  transformations.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1433861 13f79535-47bb-0310-9956-ffa450edef68