RetryJobs#retry_attempts_from is presently a private method
Merge pull request #51 from bwthomas/fix_error_on_private_method_call

RetryJobs#retry_attempts_from is presently a private method
Fix private method call
Merge pull request #49 from dlackty/fix-private-method-call

Fix private method call `retry_attempts_from`
Add Travis CI config
Merge pull request #53 from dlackty/fix-travis-ci

Add Travis CI config