made metadata value generation more stable
Merge branch 'staging' into 538-correct-seeds-for-formality-level-etc
discussion at Skype conference with Maria Keet, Oliver Kutz, Aleksandra Sojic, Fabian Neuhaus, Christoph Lange, and Mihai Codescu
Merge branch 'staging' into 538-correct-seeds-for-formality-level-etc
Small cosmetic change.