Resolve "exception should be handled properly"

Closes #321

See merge request NCER-PD/scheduling-system!227

Resolve "edit appointment type"

Closes #320

See merge request NCER-PD/scheduling-system!226

Feature/selectable redcap fields

Closes #300

See merge request NCER-PD/scheduling-system!224

Feature/custom voucher issue date

Closes #312

See merge request NCER-PD/scheduling-system!225

Add/addresses to subject view

See merge request NCER-PD/scheduling-system!223

Fix/avoid appointments if subject is marked

See merge request NCER-PD/scheduling-system!222

show error message if the user attempts to add a visit to a marked subject (deceased, resigned, excluded, etc)

added property to get the current subject status as string and a method to get if the user is suitable for further schedule

appointment cannot be added if the visit is finished or the subject is marked. The appointment cannot be edited if the subject is marked (deceased, resigned, etc)

PDP script to fix screening numbers

See merge request NCER-PD/scheduling-system!220

0.13.1 into master

See merge request NCER-PD/scheduling-system!221

Fix/avoid double visit creation

See merge request NCER-PD/scheduling-system!215

script to fix screening numbers given a CSV file with columns 'Last Name', 'First Name', 'Screening'

added format to disabled column

See merge request NCER-PD/scheduling-system!219