Add `BlockType` for year in school question.
 - fix for: https://errors.uscm.org/apps/52b345bde694aaa9ab00038c/problems/53dbf745139b210c77000063
Undo change as @hlbraddock reports it is not necessary
Merge pull request #222 from CruGlobal/bug/yearInSchool-question

Add `BlockType` for year in school question.