Update Announcement based on the real 1.3.12 to 1.3.13 changes; I've only included

what I think are the most important features here, trying to save users having to
trawl through the CHANGES file if they only want a brief overview of the new features
PR:
Obtained from:
Submitted by:
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@86503 13f79535-47bb-0310-9956-ffa450edef68