Days left

Updated the complete items#method.  Was able to check with the rails console and the inspect element on my browser that checkboxes are being updated.  However, LIYA still wasn't showing that it was updated - did you happen to find that other database app?

Also, I decided not to do the uncomplete method since it would be a moot point based on the upcoming functionality of an item is deleted when the checkbox is selected.  I am working on that feature on a new branch that was created from the "days-left" branch below.