Added definitions and status lines for all HTTP/1.1 status codes.

Improved the speed of the index_of_response() routine.
Reviewed by: Brian Behlendorf, Chuck Murcko
Submitted by: Tom Tromey (with major modifications by Roy)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@76873 13f79535-47bb-0310-9956-ffa450edef68