Added method updateAppointment in each layer
Get groups by status and web-ui was implemented
deleted
Merge remote-tracking branch 'origin/feature/interview-webui/getGroupsByStatus' into develop

Conflicts:
	entity/pom.xml
	entity/src/main/java/com/softserveinc/ita/entity/Group.java
	entity/src/main/java/com/softserveinc/ita/entity/exceptions/ExceptionJSONInfo.java
	pom.xml
get groups by status + web-ui was merged
Merge branch 'develop' of https://github.com/combats/ITA-java into develop
Modified README
Merge branch 'feature/PutAppointmentWithActualStartTime' into develop

Conflicts:
	interview-sheduller/src/main/java/com/softserveinc/ita/service/mocks/AppointmentServiceMock.java
Resolved some issues.
Modified some entities and added RoleDAO with implementation also covered with tests
Merge pull request #44 from combats/feature/EntitiesForSecurity

Modified some entities and added RoleDAO with implementation also covere...
Merge remote-tracking branch 'origin/develop' into InterviewScheduler/InterviewFactoryEntity

Conflicts:
	entity/pom.xml
	entity/src/main/java/com/softserveinc/ita/entity/Appointment.java
	entity/src/main/java/com/softserveinc/ita/entity/User.java
	interview-sheduller/src/main/java/com/softserveinc/ita/service/AppointmentService.java
	interview-sheduller/src/main/java/com/softserveinc/ita/service/mocks/AppointmentServiceMock.java
	interview-sheduller/src/test/java/com/softserveinc/ita/mvc/AppointmentTests.java
	interview-sheduller/src/test/java/com/softserveinc/ita/service/AppointmentServiceTest.java
merger with new develop