nginx 0.7.1 release

Changes with nginx 0.7.1                                         26 May 2008

   *) Change: now locations are searched in a tree.

   *) Change: the "optimize_server_names" directive was canceled due to
      the "server_name_in_redirect" directive introduction.

   *) Change: some long deprecated directives are not supported anymore.

   *) Change: the "none" parameter in the "ssl_session_cache" directive;
      now this is default parameter.
      Thanks to Rob Mueller.

   *) Bugfix: worker processes might not catch reconfiguration and log
      rotation signals.

   *) Bugfix: nginx could not be built on latest Fedora 9 Linux.
      Thanks to Roxis.

Warning: the first change is important. Although I tested this version
on site with about 100 locations, there is a risk that a request may be
handled in a wrong location.