Basic requirements for each model
Basic Back-End #5 - Save names with capitalization for easy searching
Basic Back-End #5 - Find the challenge ID before saving
Basic Back-End #5 - Moving challenge_id identifier into guesses_controller, and adding user discovery into challenges and guesses controllers.
Basic Back-End #5 - Adding global constants STATUS_WRONG/RIGHT and setting default guess status to be STATUS_WRONG
Adding basic support for creating challenges under a specific user
Basic Back-End #5 - For debugging have auto-set a guess to be by user_id 1