ISTWCMS-6165 Rename identifier for audience, type and date in uw_views_event
ISTWCMS-6165 Rename identifier for audience, type and date in uw_views_event to fix WCMS 2-style filter query strings should not break WCMS 3 listing pages
ISTWCMS-6165 Rename identifier for audience, type and date in uw_views_event to fix WCMS 2-style filter query strings should not break WCMS 3 listing pages