Fix page missing bug

A bug existed where pages would go missing if, after doing everything else, a user jumped back to the Upload step and uploaded/deleted additional files, then Acquitted.  The changes would only be saved if they went through the Identify step again.  The solution was to save the job to the AmberSession again (via JobRecord.preserveInAmber()).
only reformatting.
Merge pull request #221 from nla/hr-missing-pages

Pages went missing!