* headers: Move *_DECLARE_* macros to beginning of line in headers.

        trunk patch: http://svn.apache.org/viewvc?view=revision&revision=1374963
             2.4.x patch: http://people.apache.org/~fuankg/diffs/httpd-2.4.x_headers.diff
                  +1: fuankg, humbedooh, jim



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1389266 13f79535-47bb-0310-9956-ffa450edef68