design add
Merge branch 'master' of git@github.com:teacher73/brain_java.git

Conflicts:
	.settings/org.eclipse.core.resources.prefs
da0 add
Insert add
delete 추가
FileDao 완료
Student equals 수정
main 수정
manager수정
Merge branch 'master' of git@github.com:teacher73/brain_java.git

Conflicts:
	StudentList.data
	src/studentmanager/StudentManger.java