Implemented voting and the day/night cycle. 

Day/Night Cycle:
Run using a scheduler, automatically checks to see whether it's flipped
between day and night. Going from night to day means that the
werewolves' "votes" (their kills from the previous night) get erased.
Going from day to night means that the person with the most votes from
the villagers gets executed, then the villagers' votes get scrapped.
Werewolves are allowed to vote.

Added testing scripts for most of the major functions created up to this
point.

Have yet to implement the game end, although there is a basic function
that can identify when the game should end, so implementing the rest
will just involve dropping the player/kills/game tables and updating
user scores accordingly. Scores are also not yet implemented, but the
framework in the database is present, so it will just involve a couple
extra calls.