Merge r696006 from trunk:

* INSTALL: Add a blurb about --with-included-apr option.

Submitted by: Tim Bray
Tweaked by: jerenkrantz

Submitted by: jerenkrantz
Reviewed by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@696748 13f79535-47bb-0310-9956-ffa450edef68