Alpha Build

We have an alpha build!  This contains nearly all features that will be present on release, including:

• 3 AI Types: light, heavy, ranged
• Enemies are knocked back a little bit when you hit them.
• Some sample sounds (mostly from Freesound)
• Some sample music by Kevin MacLeod
  • Added a little easter egg where the music will very occasionally be different. ;)
• Multiple weapons, each with a unique buff
• Projectile of Death spawns on 2nd and 3rd light attack combos, destroying everything it hits.

We also made wave-spawning functionality but were unable to implement it for this build.  Maybe next time.

Now we move into beta development.  Prepare to see some art and fancy animations!