AnimatedHint

Added an Animated Hint to the MessageBoard; This will display text to
the screen for a set amount of time, before disappearing. it will float
up, and draw on top of everything else. Also, changed the resolution a
bit, to make the game more visible for computers with smaller screens,
as well as added a DateTime to the savefile, which is used to calculate
amount of time to give credit for while the game is offline.