title: How to change the object view in paper_trail
body: <p>I have used paper_trail gem for auditing in the application i am developing. I am able to manage most of its features and i was able to display the data in versions table to the user. In doing so the data in object attribute of the versions table is some what unreadable. How can i make it be readable?
  Here is my sample output of the object attribute:
  <code>version.object</code> retrieves in the following format in a single cell:</p>
  
  <pre><code>--- budget_year: '2014' name: bbb reference_number: j789789 requesting_unit: '798789' quarter: II source_of_fund: Government budget_type: Recurrent procurement_method: Open Bidding procurement_level: National estimated_cost: 4455.0 currency: '4545' purchase_request_id: start_at: 2014-07-30 end_at: 2014-07-31 created_at: 2014-07-24 08:29:38.000000000 Z updated_at: 2014-07-24 08:29:38.000000000 Z id: 1
  </code></pre>