Added concept of lives; bonzo loses lives and if he loses them all the
game is over.

Game over means the game freezes :) Probably can't truly implement game
over until the menu system is in place. Most likely will resolve to just
resetting the entire world instead of trying to go back to the selection
screen.
Updated readme

When bonzo loses all lives, current level restarts back at 4. I wanted
to go back to level selection dialog but hitting threading issues. Must
better understand swing threads to effectively do that, which will be
deferred until the Main Menu.
Bonzo now gains lives from golden bonzo heads and gets energy from
powerup zapper thingies.

Need to redo game sound effects to account for the proper sounds though.
Updated resource pack and sound naming to properly use all different
powerup sounds. Powerup sounds now taken from a direct conversion
(thanks Phil!) and over time more sounds will be replaced. Updated debug
world to use latest resource pack and level data.
Wings and Shield now regenerate when level reset. Also took away score
because having infinite regenerating thing that grants score is a
complete game-breaker.
Updated readme and latest .jar.