Allow fire_timers to return sub-second delay values when necessary
Bugfix for commit_on_success.

The `commit_on_success` decorator should return the decorated version.
Also, manual commits are forbidden inside `transaction.atomic`.
migrate pycouchdb for python 3 compatibility
Fixes list append error in eventio.  Closes #404
Merge pull request #401 from rczajka/patch-1

Bugfix for commit_on_success.
Adds Radek Czajka to AUTHORS
Merge branch 'master' of github.com:celery/kombu
Redis: Ruse connections at restore
Merge branch 'vangheem/master'
Adds Nathan Van Gheem to AUTHORS
Merge branch 'c-nichols/master'
Merge pull request #410 from pulp/master

Allow ANONYMOUS sasl_mechanism by default for Qpid transport