Version 0.39.0 release

Added

• Project vocabulary task #864
• Global identifier classes for Web of Science and Zoological Record #3853
• /api/v1/biological_associations/simple.csv endpoint
• Return a png of any image via /api/v1/images/:id/scale_to_box(/:x/:y/:width/:height/:box_width/:box_height) #3852
• content_type and original_png attributes to /api/v1//images/123 #3852
• Ability to extend housekeeping on some filters to check changes on related models #3851
• Some new soft validations on Misspellings

Fixed

• Handle bad BibTeX coming back from CrossRef.
• Quick Forms: Observation matrices slice doesn't work
• Quick Forms: Content slice doesn't display contents #3850
• Browse OTU: Load preferences
• New loan task: reset button doesn't work #3856
• New image task doesn't create citations without attributions
• Missing pagination headers for 4 endpoints #3859

Changed

• Allow omitting seconds in non-interval ISO-8601 date times in DwC importer.