Changed back to use of Directory blocks for access control.

Clarified location of proxy source in 1.2.
Added note that proxy is HTTP 1.0 compliant.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@78013 13f79535-47bb-0310-9956-ffa450edef68