of :SSLEnable is false.

* lib/webrick/server.rb (WEBrick::Daemon.start): prepared stdio
  don't allow changing its mode.

* lib/webrick/httpproxy.rb (WEBrick::HTTPProxyServer#proxy_service):
  should delete trailing LF from the result of pack("m*").

* lib/webrick/httpproxy.rb (WEBrick::HTTPProxyServer#proxy_connect):
  - should delete trailing LF from the result of pack("m*").
  - clear Request-Line not to send the response by HTTPServer#run.

* lib/webrick/httputils (WEBrick::HTTPUtils.parse_qvalues):
  refine regexp (and change the name of a local variable).

* lib/webrick/httputils.rb (WEBrick::HTTPUtils#escape_path): add
  new method to escape URI path component.

* lib/webrick/cgi.rb (WEBrick::CGI::Socket#request_line): should
  escape SCRIPT_NAME and PATH_INFO before being parsed as a URI.

* test/webrick/*, sample/webrick/httpproxy.rb: add new file.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@7784 b2dd03c8-39d4-4d8f-98ff-823fe69b080e