Add .manifest post-processing to the httpd build for users of VC 8

(Studio 2005, 'free' Express or full edition) command line builds.

Backports 495126, adjusted for debugging/debug path change between
trunk and 2.2 branch.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@495130 13f79535-47bb-0310-9956-ffa450edef68