Add support for parent hierarchy in AUtoConfigurationReport
Improve reporting of SpEL condition matching
Use SimpleHealthIndicator if DataSource present
Ensure /error view is available
Add @SpringApplicationConfiguration (for integration testing)

Example:

    @RunWith(SpringJUnit4ClassRunner.class)
    @SpringApplicationConfiguration(classes = SampleDataJpaApplication.class)
    public class CityRepositoryIntegrationTests {

    	@Autowired
    	CityRepository repository;

Fixes gh-66.