Damn, two fixes in one.

1. Move some definitions around for mod_status.
2. Fix a missing NULL in pstrcat, and an uninitialized variable in mod_proxy.c.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@76413 13f79535-47bb-0310-9956-ffa450edef68