SECURITY: CVE-2010-0425 (cve.mitre.org)

mod_isapi: Do not unload an isapi .dll module until the request
processing is completed, avoiding orphaned callback pointers.

Submitted by: Brett Gervasoni <brettg senseofsecurity.com>, trawick
Reviewed by: trawick, wrowe

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@917870 13f79535-47bb-0310-9956-ffa450edef68