fixed room in Dank Depths with unreachable door

- fixed swarm gaper not changing to a swarm leader

- Dank pooter and dank swarmer's eyes now glow in the dark
- fixed more nil checks

- fixed nil check on heartache

-fixed swarm gaper subtype error
-tweaked some depths rooms to be slightly less bad

- fixed nil checks for swarmer variants

REPENTOGON'ed thumbnail

release