* Added test for sample and cleanup
* Added skipEventsListener
* Added new message format.
* Added integration tests.
* Updated application.properties to add json content type
resolvesspring-cloud/spring-cloud-task#119
- Spring Cloud Task Stream shouldn't depend on a specific binder implementation; hence removing redis binder from dependencies
- The binder dependency needs to come from the task application
- Also removed few other unwanted dependencies
This resolves#120
Added spring-cloud-task-core back as a dependency.
This will be needed when https://github.com/spring-cloud/spring-cloud-task/pull/117 is merged.