Merge branch 'issue/278' into development

src/libs/convert/ruralLocation.js

src/libs/middlewares/id2str.js

src/libs/routes/class.js

src/libs/routes/enrollment.js

src/libs/routes/school.js

src/libs/routes/teacher.js

src/test/class.js

src/test/enrollment.js

src/test/schoolCount.js

src/test/teacher.js