87 & 123 & 88 Wrong validation message

All bugs fixed.

https://trello.com/c/9rTXwFIW/197-87-pv-more-detailed-unit-staff-list-0-16

https://trello.com/c/P4IOXBSX/185-21-123-pv-radar-create-role-radar-group-admin
https://trello.com/c/Ku4Qnj8Z/210-20-88-pv-more-detailed-patient-list
https://trello.com/c/J0ZAPtwt/311-wrong-validation-message
Merge pull request #74 from lu-yang/develop

87 & 123 & 88 Wrong validation message