Merge r1657692, r1660800 from trunk

   * Save a few bytes in conf pool when parsing some directives. Use temp_pool
     when applicable.

Submitted by: jailletc36
Reviewed by: jailletc36, ylavic, covener
Backported by: jailletc36

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1662639 13f79535-47bb-0310-9956-ffa450edef68