Now addition group creation works correctly
Changes to be committed:
	modified:   school-dao/src/main/java/school/dao/CourseDao.java
	modified:   school-dao/src/main/java/school/dao/implementation/CourseDaoImpl.java
	modified:   school-dao/src/main/java/school/model/Course.java
	modified:   school-service/src/main/java/school/service/CourseService.java
	modified:   school-service/src/main/java/school/service/implementation/CourseServiceImpl.java
	modified:   school-service/src/test/java/school/service/implementation/CourseServiceImplTest.java
	modified:   school-web/src/main/java/school/controller/GroupController.java
	modified:   school-web/src/main/webapp/resources/js/group.js
	modified:   school-web/src/main/webapp/views/groups/head-teacher.jsp
Merge branch 'master' of https://github.com/vsomov/SchoolPortal