alphagov/govuk_content_models — pull request #188 by vinayvinay (2014-07-03 10:09:01+00:00)
Title: Validation for scheme dates

www.agileplannerapp.com/boards/173808/cards/4294

scheme dates should not be earlier than 1990,
and start date should not be later than end date.

/cc @bishboria @fofr