rose metadata: fix env-val triggering
Add a value-hints widget for metadata Ticket 1322
Merge branch 'master' into 1322_metadata_value_hint
rose metadata: values hints improved Ticket 1322
Merge pull request #1458 from kaday/1322_metadata_value_hint

rose metadata: value hint
simplify based on review feedback
Merge pull request #1456 from benfitzpatrick/trigger.environment-variable

rose metadata: fix env-val triggering