Once more, with feeling... add back limit_req_line, limit_req_fieldsize,

and limit_req_fields to server_rec so that they can be configurable by
the new directives LimitRequestLine, LimitRequestFieldsize, and
LimitRequestFields.  Do not allow the user to set LimitRequestLine and
LimitRequestFieldsize higher than the compiled buffer sizes.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@81906 13f79535-47bb-0310-9956-ffa450edef68