Add AddHandler command, which allows r->handler to be set by a filename

extension. Modify the rest of Apache to make use of this change, as well as
the example lines in srm.conf-dist. This almost completely removes the
"magic" content types from Apache, although they will still work, for
back-compatibility with existing configuration files.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@76431 13f79535-47bb-0310-9956-ffa450edef68