Simplify the configuration process by moving all libtool stuff to APR

and moving the last bits of hints.m4 inline.  Now we only run every
test four times instead of five.  One down, three to go.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@89081 13f79535-47bb-0310-9956-ffa450edef68