A complete rewrite of support/logresolve.c:

    
    * Now uses APR
    * Supports IPv6 addresses
    * Slighty less hurtful on memory
    * archaic (but interesting) notes marked as historical
    * Will not perform very well without APR >= 1.3 due to
      lack of buffered file-io.



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@327909 13f79535-47bb-0310-9956-ffa450edef68