Implement the s presenter helper

presenter_s_implementation.rb

  def s(*args)
    output = "".html_safe
    args.each {|current_arg|
      output << current_arg.html_safe
    }
    output
  end


  # The Specs for said function
  it "handles HTML elements that should not be escaped" do
  	s("<h1>Hi</h1>") == "<h1>Hi</h1>"
  end
  
  it "handles an h in the middle to indicate that a particular string actually should be escaped" do
  	s("<blink>hello</blink>", " world ", h("<BAD TAG>")).should == "<blink>hello</blink> world &lt;BAD TAG&gt;"
  end