Update Vendored Rack to 1.2.0

Also update tests for itextomml 1.3.25.

vendor/plugins/rack/test/testrequest.rb

@@ -1,72 +0,0 @@
-require 'yaml'
-require 'net/http'
-
-class TestRequest
-  def call(env)
-    status = env["QUERY_STRING"] =~ /secret/ ? 403 : 200
-    env["test.postdata"] = env["rack.input"].read
-    body = env.to_yaml
-    size = body.respond_to?(:bytesize) ? body.bytesize : body.size
-    [status, {"Content-Type" => "text/yaml", "Content-Length" => size.to_s}, [body]]
-  end
-
-  module Helpers
-    attr_reader :status, :response
-
-    ROOT = File.expand_path(File.dirname(__FILE__) + "/..")
-    ENV["RUBYOPT"] = "-I#{ROOT}/lib -rubygems"
-
-    def root
-      ROOT
-    end
-
-    def rackup
-      "#{ROOT}/bin/rackup"
-    end
-
-    def GET(path, header={})
-      Net::HTTP.start(@host, @port) { |http|
-        user = header.delete(:user)
-        passwd = header.delete(:passwd)
-
-        get = Net::HTTP::Get.new(path, header)
-        get.basic_auth user, passwd  if user && passwd
-        http.request(get) { |response|
-          @status = response.code.to_i
-          begin
-            @response = YAML.load(response.body)
-          rescue ArgumentError
-            @response = nil
-          end
-        }
-      }
-    end
-
-    def POST(path, formdata={}, header={})
-      Net::HTTP.start(@host, @port) { |http|
-        user = header.delete(:user)
-        passwd = header.delete(:passwd)
-
-        post = Net::HTTP::Post.new(path, header)
-        post.form_data = formdata
-        post.basic_auth user, passwd  if user && passwd
-        http.request(post) { |response|
-          @status = response.code.to_i
-          @response = YAML.load(response.body)
-        }
-      }
-    end
-  end
-end
-
-class StreamingRequest
-  def self.call(env)
-    [200, {"Content-Type" => "text/plain"}, new]
-  end
-
-  def each
-    yield "hello there!\n"
-    sleep 5
-    yield "that is all.\n"
-  end
-end