Fix breakage introduced in mod_cgi commit since we need to now include

mod_include's headers all the time.
(Also fix mod_proxy header not being listed in builddir for VPATH builds)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@95543 13f79535-47bb-0310-9956-ffa450edef68