Adds ActiveRecord::ConnectionTimeoutError to the list of handled exceptions on Reconnectable
Merge pull request #53 from jmnsf/fix_active_record_timeout_resend

Handles DB timeout in reconnectable.rb
Rename Apns::Feedback#app to app_id, change type to Integer. Fixes #50.
Fix integer devision error. Fixes #57, #56.
Add example Upstart job.
Add notification_id_will_retry and notification_id_failed, used by ApnsTcp. Fixes #54.
Bundle update
Remove unused param.
Fix generator for users upgrading from Rapns. Fixes #59.