-Fixed roombas not being available in stores.
-Raised the price but it finally depends on the type of station.
-All stations sell roombas but some of them have limited numbers.
-Roombas are now immune to poisons, including radiation.
-Roombas are no longer immune to burns but have a 90% protection against it.

-Edited the Roomba so it uses the new pet behaviours.
-Since it's considered a pet now, it can be grabbed without having to stun it first.
-It won't react to the 'play' action will it will accumulate happiness anyways.
-In addition to consuming corpses, now it also eats pet waste.

-Initial Release.