Merge pull request #2185 from dennishendriksen/molgenis/1.2.2

Fix study manager study definition update + various small fixes
Fix ordered item download
Merge branch 'molgenis/1.2.2' of https://github.com/molgenis/molgenis into molgenis/1.2.2
Fix tests
Merge pull request #2188 from dennishendriksen/molgenis/1.2.2

Fix ordered item download
Merge branch 'molgenis/1.2.2' of https://github.com/molgenis/molgenis into molgenis/1.2.2