After creating a game, leave several of the default values on the form the same, to make multiple entries faster.
Added created_at to game properties, so we know which game was most recently created.

This will allow us to default to values from a user's most recently created game when visiting the site.
When loading the page, set default values for some of the game fields to the same as the previously created game.
Merge pull request #9 from derikson/topic/default-values

default values