This change removes the Spring Cloud Task dependency upon a
CommandLineRunner from boot and moves the handling of the task lifecycle
closer to the "edge" of a Spring Boot application.
With this change, now a developer simply adds @EnableTask to their
configuration somewhere and the task lifecycle will be recorded.
Resolvesspring-cloud/spring-cloud-task#39
* Supports SimpleTaskExplorer that accepts a TaskExecutionDao.
* Updated Dao's to support the explorer query requirements
* Added tests.
This resolvesspring-cloud/spring-cloud-task#7
* Removes all Critical and Major notifications from Spring Cloud Task.
* Removes unused local variables
* Removes What it saw as redundant null checks and subsequent complexity alert.
resolvesspring-cloud/spring-cloud-task#33
* `DefaultTaskConfigurer` returns only one `SimpleTaskRepository` all others have been removed
* `SimpleTaskRepository` can use `JdbcTaskExecutionDao` or a `MapTaskExecutionDao`
* Add `Jdbc` and Map` `TaskRepositoryFactoryBeans` to support the creation of the correct type of `SimpleTaskRepository`
* `TaskDatabaseInitializer` will initialize a database if a datasource is found and if they have not disabled it using the `spring.task.initialize.enable`
* Add tests
* Added Transaction Support
* Re-add the samples to `pom.xml`
* Samples pom skips install and deploy lifecycle targets.
