Changelog
#2846 Update for views 7.x-3.21 and ctools 7.x-1.15
#2824 Handle missing harvest source with a warning rather than mass un-publishing of content.
#2840 Skip the dataset_changelog step when harvesting, datasets always get a new revision with out it
#2839 Add drush command for deleting orphaned data tables drush dkan-datastore-drop-orphan-tables
#2828 Implement the --feedback flag when harvesting to avoid SSH time outs during long harvests