Addition settings for logger was added
Changes to be committed:
	modified:   school-service/src/main/java/school/service/GroupService.java
	modified:   school-service/src/main/java/school/service/implementation/GroupServiceImpl.java
	modified:   school-service/src/main/java/school/service/implementation/UserDetailsServiceImpl.java
	modified:   school-service/src/test/java/school/service/implementation/GroupServiceImplTest.java
	modified:   school-web/src/main/java/school/controller/GroupController.java
	modified:   school-web/src/main/resources/log4j.properties