v6.0

• added: elasticsearch export change for last editor access
• added: menu item preparation is now hookable
• added: registering static menu items can be targeted to a specific menu
• changed: now using elgg-plugin and bootstrap class for plugin init
• changed: out of date message now uses elgg_view_message
• changed: set minimal requirement to Elgg 3.0
• changed: use core views for entity icon upload
• fix: use correct search entity view
• fixed: comment notifications to last editor
• fixed: correctly handle exceptions from gatekeepers
• fixed: deprecated notice about group tool
• fixed: EntityTools support
• fixed: filter menu has wrong tabs
• fixed: getLastEditor ordering
• fixed: incorrect forwarding after deleting static page
• fixed: out-of-date double filter menus
• fixed: permissions for moderators during deletion
• fixed: revision listing. newest first
• fixed: static menu js generalized
• removed: custom view for newsletter embedding
• removed: no longer able to reorder root pages
• removed: old upgrade/migration jobs
• removed: unused css rule