Manage subprocesses more carefully in case random failures (e.g. MemoryError) occur.
Merge remote-tracking branch 'origin/subprocess-management'
Update WebTest to 2.0.10 to remove monkey patch.
Merge branch 'webtest-update'
Set additionalProperties false on construct tags, refs #883.
Merge branch 'construct-tags-883'
reference -> items so that subschema is enforced, refs #884. Data QA required.
Merge branch 'reference-items-884'
Corrections to experiment field filtering in EDW query
Add more verbose mode messages
Bring over EDW files having edwFile.errorMessage set.  They are given status=OBSOLETE, same as those with edwFile.deprecated set.
Wrap exceptions that might occur with EDW schema change to alert user
Add check for schema change
Merge branch 'master' into edwFile4