Reinforcement learning, FFI, animations, new mob

• Animations
• Gelatinous cube mob (jumps over walls)
• FFI
• Gym interface
• Save and view replays
• Milestones and autosaves
• RL agent that plays well

Smarter zerglings, Generated structures, Main menu, HP bars

v1.4

Update README.md

Turrets, map view, speed potion, red moon night

v1.3

Update README.md

Banelings, Bow&Arrows, Craft menu

v1.2

Merge remote-tracking branch 'refs/remotes/origin/master' into master

Night, spawns, food, loot

Hostile mobs spawn continuously at night.
Cows spawn during the day.
Some mobs drop loot, which can be picked up by stepping on it.
Food that replenishes health.

v1.0

The game is now playable (and losable).

Zombies run after you but only move at half of your speed.

You can kill them, but they can also kill you.

The map is infinite but all tiles generate independently from their neighbours.