Version 0.3.3

Collision with level fixed. Working for the most part. AI added back in,
with ability to jump if it gets to a wall. Debugging red tiles removed.
Version 0.3.4

Changed level design, colouring, added better borders, added ability for
different sized actors but only multiples of 16 work, removed enemy,
fixed particles being stuck above y 216 and removed their reflections.
Added start of main menu.