bumped version to 2.2.1
MODIFY
RELEASE_NOTES.rdoc
RELEASE_NOTES.rdoc
= Release Notes
+== Version 2.2.1
+* Subscriber exits with meaningful error log on possible authentication failures.
+
== Version 2.2.0
* Support specifying a whitelist of retriable exceptions when registering a

MODIFY
lib/beetle/version.rb
lib/beetle/version.rb
module Beetle
- VERSION = "2.2.0"
+ VERSION = "2.2.1"
end

bumped version to 2.2.1