Changed function so the reminder is sorted as well. If no filter is provided then the reminder is all the screening number and it will be sorted with the provided order. Changed tests and the test screening numbers.

address, city, country, data_born, default_written_communication_language, email, first_name, languages, last_name, phone_number, phone_number_2, phone_number_3, postal_code removed from study_subject (all this information is stored in subject)

the code is fixed so unit test passes