title: Prawn gem undefined method `table' for #<FeedbackPdf>
body: <p>I'm trying to get PDF table to work ( following railscast example ) but i get the error <code>undefined method</code>table' for #
  
  <p>This is the pdf class lib (followed railscast way of doing) : </p>
  
  <pre><code>class FeedbackPdf &lt; Prawn::Document
    def initialize
      super
        text_label
        pdf_feedbacks
    end
  
    def text_label
      text "Customers Feedback:"
    end
  
    def pdf_feedbacks
      table[[1,2],[3,4]]
    end
  end
  </code></pre>
  
  <p>Can anyone help me please ?</p>