Merge branch '454-create-unstructured-exam' into 'master'

Allow the creation of unstructured exams

Closes #454

See merge request !297
6 jobs for v0.3.0a3 in 4 minutes and 18 seconds (queued for 1 second)
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Status Name Job ID Coverage
  Build Env
manual build-image #129758
allowed to fail manual
 
  Build
passed build #129759

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  Test
passed lint_js #129761

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passed lint_py #129762

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passed test_js #129760

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passed test_py #129763

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