fix for no matched line items (2-1)

* reduce the noise to honeybadger on this issue https://trello.com/c/03KXlfyE
* we were handling and returning 0 anyway, this just gets rid of the HB alerts.
Update Rakefile

Fix for travis...
Merge pull request #4 from bonobos/fix/2-1-stable/handle_no_matched_items

fix for no matched line items (2-1)