v0.0.1

Exclusive private alpha release, created as a present for Flashnotes
employees.

Features:
* Player character that can move and fire missiles
* Enemy characters that spawn over time
* Player lives
* Basic scoring
* Missiles can defeat enemies and increment score
* Player-enemy collision reduces player life
* Leaderboard
* Help file documentation

Missing desired features:
* Enemy movement
* Point multipliers
* Networked high scores
* Firing missiles blocks gameplay until all missiles disappear from the
  board
* Enemies turn into popcorn pieces and stop moving when hit. These
  disappear after a short amount of time but if enough are collected
  they yield an extra life.