+ update tests to use Hamcrest
+ examples for chapter 2.5
+ chapter 4.3.2 - profile definition and usage of annotation @ActiveProfiles
+ chapter 4.4 - annotations @ActiveProfiles and @IfProfileValue
+ chapter 4 - rest of examples
+ spring boot projected (sources originally located in core project)
+ example of Spring Boot Admin application
+ sat-spring-boot - update application.properties (make info.id configurable)