Version 0.1.6

This one has a decent amount of unexpected stuff. While I added the UI and restart button, I also decided to add a new melee bash mechanic! If you right click, nearby zombies will be "deflected", causing them to bounce around the map like a pinball. If a deflected zombie hits a wall or another zombie, damage is dealt to them. If you pull it off right, you can kill a decent sized horde with one click. It's great for if you get cornered too. The bash mechanic is still a heavy WIP, but I'd like to experiment with it more.

There was also some balance changes done. Now only a certain amount of items can spawn at a time. But other than that, yeah, bashing!