Merge branch 'fix_408' into hotfix_1.8.1

package.json

src/libs/app.js

src/libs/convert/educationLevelSchoolYear.js

src/libs/convert/pfe.js

src/libs/middlewares/id2str.js

src/libs/routes/api.js

src/libs/routes/classCount.js

src/libs/routes/classroomCount.js

src/libs/routes/dailyChargeAmount.js

src/libs/routes/enrollmentProjection.js

src/libs/routes/outOfSchool.js