Bookworm food string is downloaded from wikipedia

Gets body text of random article
Added loading screen

Necessary due to potentially slow load time of wikipedia article string
Set specific font rather than font family

This way, when we get a character that isn't supported by the default
font in the Monospaced family it is simply not displayed, as opposed to
defaulting to another font with different measurements and causing havoc
with the printed world string.
Made FoodStringFetcher remove font-invalid chars

Because where's the fun in eating those blank character boxes?
Changed whitespace char from dot to bullet

Much more visible
More wikipidia article string sanitising

Including removal of generally uninteresting parenthetical statements and
citation numbers
Added timeout and error message for article fetch
Fixed maven build warnings. Minor gitignore change
Ability to retrieve food string from BookwormGame

Both entire and the portion eaten (this will come in handy for the game
over message)
Bookworm game over screen prints eaten characters
Made error message bookworm string display fully
Pause game functionality
Made bookworm game not save high scores