Merge branch 'feature/registrations-starting-year-widget' into 'master'

Ghost Userrequested to merge
cherry-pick-ccd627fe into release/1.16

Make starting year a dropdown in registration form

Closes #667 (closed)

See merge request !869 (merged)

(cherry picked from commit ccd627fe)

bd405422 Make starting year a dropdown in registration form

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