Removing the announcement for jumping
Making the game re-fetch the level list when the player goes
to the main menu from other screens, so they don't have to
refresh if they make a new level, then go to the main menu from
edit mode.
Adding features to the ending screen, including a message
showing the player what the electricity they generated could
power. (The score shouldn't be considered any real world unit...)
Some minor changes to the ending screen, including preventing
the used item list from being drawn at the bottom of the screen.
Making items update in the ending screen, so they can actually
fall into the final reactor.

Also adding a special case to Game.updateItems() for the ending
screen.
Split the main function in two: one for game logic and one for
drawing.
Adding Item.setPosition(), which sets both the x/y coords and the
aabb coords.
Removing the line that adds a "treenode" object to every tree
element. It violated the style rule against modifying the
contained objects, and wasn't used at all anywhere else.
Converting to UNIX style line-endings. Windows needs to die.