Add the httxt2dbm utility to create DBM files for RewriteMap. This replaces...

Add the httxt2dbm utility to create DBM files for RewriteMap.  This replaces the txt2dbm script in the manual, and allows the use of any available DBM format.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@209539 13f79535-47bb-0310-9956-ffa450edef68