Update readme team positions
Remove some fire code.
Add event for enemies to look at the player
Create a chase player event.
Merge branch 'refactor-events'
Add a frenzy event.

This commit is a pretty good indicator for how to look at events on a
stage level. We tell the Enemy to send an "enemy_killed" event to the
stage whenever it dies, and the stage interprets the event, and triggers
the 'frenzy' event on all enemies once a certain amount of kills have
happened.
Frenzy now updates speed instead of size.

What was I thinking? Making enemies faster is way more fun than just
making them bigger.

It could always be both though...
Sword now kills enemies.
Fix pistol auto shot.
Add Variable sized enemies.
Remove reloading by switching weapons.
Add a kill counter to UI.
Refactor music tracks with Q.state
Refactor paused with Q.state
Retab pause code (somebody mixed tabs and spaces...)
Add reset level when all enemies killed. Also split ui into own file.
Add level ui, and spawn enemies depending on level value.
Shotgun added.
Merge remote-tracking branch 'upstream/master'