One more fix for 2.9

Bump to 1.1.3

Merge branch '2.9-support'

Bump to 1.1.1

Release 1.1.0

Release 1.0.0

Bump version

Merge branch '212-module-import-error'

Fix queue tests

Namespace Redis keys to avoid conflicts between instances

The `ckan.site_id` config option (or `default` if missing) is used to
namespace the Redis keys: routing key and persistance key. Consumers
will only get the relevant keys for their instance.