Fix up the path info in the balancer backend just like we do in the

fcgi backend.  This lets Rails apps work under a balancer setup without
any hacks to Rails itself.

* modules/proxy/mod_proxy_balancer.c
  (proxy_balancer_canon): Set r->path_info based on the path we got
   from parsing the URL.

* modules/proxy/mod_proxy_fcgi.c
  (proxy_fcgi_canon): Remove the comment about balancer not setting
   the path_info.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/fcgi-proxy-dev@383291 13f79535-47bb-0310-9956-ffa450edef68