Incompatible: Redis fanout now honors routing_key pattern. Fix for celery/celery#1882
Critical: Delivery tags must be UUID.  Fixes bug that could lead to loss of data
Tests passing
Redis: Patterns in fanout now enabled by "fanout_patterns" transport options
Tests passing
Adds .gitignore and dump.rdb to gitignore
Pidbox: adds default on_decode_error handler