Added method getAppointmentIdByGroupIdAndApplicantId which covered with test on each layer.
Removed redundant code
Merge pull request #45 from combats/feature/getAppointmentIdByGroupIdAndApplicantId

Added method getAppointmentIdByGroupIdAndApplicantId which covered with ...
Merge remote-tracking branch 'origin/develop' into InterviewScheduler/InterviewFactoryEntity

Conflicts:
	applicant-manager/src/test/resources/applicant-spring-config.xml
	entity/src/main/java/com/softserveinc/ita/entity/Applicant.java
	entity/src/main/java/com/softserveinc/ita/entity/Appointment.java
	interview-sheduller/src/main/java/com/softserveinc/ita/service/mocks/AppointmentServiceMock.java
	interview-sheduller/src/test/java/com/softserveinc/ita/service/AppointmentServiceTest.java
	interview-sheduller/src/test/resources/mvc-dispatcher-test-servlet.xml
	user-manager/src/main/resources/user-spring-config.xml
merged with new develop