makes crackers garbage collect, and parrots drop crackers when they don't drop it gently.

added a directory of parrot snowflake code

Parrots can now hear from their headsets!

Fixed a problem with parrots not taking damage from simple animals. Rest in peace, robust god.

tweaks parrots a tiny bit, fixes most of the oversights that nodrak pointed out.

fixes a ton of stuff with parrots
and also some stuff with simple animals

parrots now eat crackers
parrots now use attack_animal instead of snowflake attack code
parrots toggle between harmless and aggressive, player parrots can do this with a verb
player parrots can use headsets but cannot hear their headsets.

simple_animals now return after using healing items on them, they will also ignore ointment as simple animals only take brute damage.
parrots can no longer use common channel.
reverted changes to headset.dm.
Parrots can no longer hear headsets.
removed part of the snowflake directory
now crackers poly eats from his own hand garbage collect instead of stacking up inside of him.
no more garbage collecting, only del()
Merge pull request #910 from KazeEspada/parrotsandsimpleanimals

parrots and simple animals