Critters v1.1.0.0

What's missing in the basic environment? Cicadas! Lightning bugs! Red-winged blackbirds! Owls! Frogs! More! This will simply add the sounds and sights of those important little creatures, providing you with a more natural, relaxing experience.
1.1.0.0 changes:
Added dogs and a train (OK, so it's not a critter.)