Include strings.h for strcasecmp(), strncasecmp(), and bzero().

Include time.h for time().

This removes a bunch of compiler warnings with gcc -Wall on AIX.
Submitted by:	Jeff Trawick, Victor Orlikowski


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@85723 13f79535-47bb-0310-9956-ffa450edef68