Minor Unity security vulnerability patch

Hey Baddies,

We received notice from Unity (the makers of our game engine) that all games built in a specific version of their editor contained a newly discovered security vulnerability. Unity provided developers a patch to correct this vulnerability, and we have included that fix in this minor update.

We've also been busy with a large Castle Doombad content update that's coming soon, so please keep an eye out.

Stay villainous!