Implement User.accessibleStudies (private)
Remove inapplicable constraint
Fix permission check on queries with xtrials
PatientSetQBS: fix ESCAPE being used w/ non-LIKE operators
Move I2B2 SQL gen back to AbstractQuerySpecifyingType
Add columnDataType prop to MetadataSelectQuerySpec

AbstractQuerySpecifyingType already has it.
MetadataSelectQuerySpec: add postProcessQuery

To allow customization of the query generated in PatientSetQueryBuilderService
based on the user.
Make xtrial ont terms implement MetadataSelectQuerySpec
Move sql gen in AbsQuerySpecType to PatientSetQBS
Have QueriesResourceTest pass the user; tests
Documentation for CollectingTabularResult
Move comment to correct place; ws
Move query details out of TerminalConceptVar
Support multiple subresults in ClinicalDataTR
Test aspects of TabRes w/ composed vars
Across trial clinical data retrieval
Clear edge case behavior of data retrieval APIs