title: PaperTrail Manually create version
body: <p>I have a spreadsheet of items which I convert to CSV and import using a custom import script into my Rails based application.</p>
  
  <p>The spreadsheet contains a row for each record but some rows hold different versions of previous rows.</p>
  
  <p>When importing the CSV I currently mark the second row using a "past_version" field but I am now thinking that implementing a full versioning gem would be a much nicer way of going about it.</p>
  
  <p>I have been reading through the docs for PaperTrail and it looks perfect for what I am after, however, I need the versions of some rows to be created as part of my import script. Can this be done with PaperTrail?</p>
  
  <p>Basically I need to start an import, say record 1, 2, 3, 4, 5 are added normally, then record 6 is actually a newer version of record 2 and so I now need to manually create a PaperTrail version.</p>
  
  <p>Is this possible?</p>