AMQP-387 Fix spring-retry Dependency

JIRA: https://jira.spring.io/browse/AMQP-387

It is no longer optional since the RabbitTemplate can now
be configured with retry.
[artifactory-release] Release version 1.3.1.RELEASE
[artifactory-release] Next development version
Add travis.yml
Rename .travis.yml
Prevent Travis from Emitting ANSI CTRL Chars