Specify measurement for items in order, study manager fixes
Specify measurement with observation + bug fixes
Merge branch 'molgenis/1.2.2' of https://github.com/molgenis/molgenis into molgenis/1.2.2

Conflicts:
	molgenis-omx-protocolviewer/src/main/java/org/molgenis/omx/catalogmanager/OmxCatalog.java
Merge pull request #2182 from jjettenn/molgenis/1.2.2

Molgenis/1.2.2 Select only items in group in protocol viewer related to story #2974
Merge branch 'molgenis/1.2.2' of https://github.com/molgenis/molgenis into molgenis/1.2.2

Conflicts:
	molgenis-omx-protocolviewer/src/main/java/org/molgenis/omx/protocolviewer/ProtocolViewerServiceImpl.java
Update documentation
Merge pull request #2184 from dennishendriksen/molgenis/1.2.2

Study manager fixes
Fix test compile error
Show external item id in study manager
Fix study manager study definition update
Merge branch 'molgenis/1.2.2' of https://github.com/molgenis/molgenis into molgenis/1.2.2
Fix tree selection for release 2