Ben Summers bensummers

## tests
# escaping.txt
---
{ "value":"\u00B9"}
---
<div>&sup1;</div>


# url.txt

---

## jruby-rack-x-sendfile.rb
class JRubyRackXSendfile
  def initialize(app)
    @app = app
  end

  def call(env)
    result, headers, body = @app.call(env)
    if headers['X-Sendfile']
      [result, headers, File.new(headers.delete('X-Sendfile'))]
    else
	# escaping.txt
	---
	{ "value":"\u00B9"}
	---
	<div>¹</div>


	# url.txt

	---
	class JRubyRackXSendfile
	def initialize(app)
	@app = app
	end

	def call(env)
	result, headers, body = @app.call(env)
	if headers['X-Sendfile']
	[result, headers, File.new(headers.delete('X-Sendfile'))]
	else