Support arbitrary gateways. Source all queue configuration from the config.
Added some features chat bot features requested by internal users
- Ability to ack on check and entity regex
- Ability to query short status on check and entity regex
Added regex support for notification rule tags.

Only do regex comparison if the tag starts with 'regex:'.
Merge branch 'bot-changes' of github.com:someword/flapjack into bot-changes
fix specs
Merge branch 'feature/arbitrary-gateways' of github.com:auxesis/flapjack-1 into feature/arbitrary-gateways
cast queue keys to_s
Added new regex_tags key for notification rule and use that for regex
matching.
Merge branch 'regex_support_for_tags2' of git://github.com/jswoods/flapjack into jswoods-regex_support_for_tags2
simplify the data being tested to aid debugging
fix failing tests
remove debugging from notification_rules.feature
prepare 0.8.9 release