* Fix versioning information where it makes sense

* Clarify DNS lookups: 'double reverse lookup' vs. 'two lookups'

Submitted, in parts, by <lucien.gentis lorraine.iufm.fr>.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@587443 13f79535-47bb-0310-9956-ffa450edef68