[META] Roadmap to 8.x-1.0 release

Tasks

• #2512702: Implement configuration UI
• #2569569: Make modal display plugin use iframe
• #2363675: Rebuild routing information when entity browser with route is saved
• #2512708: Remove event subscriptions from entity browser and make it stateless
• #2613254: Theme entity reference field widget

Features

• #2366335: Support defining conditions
• #2568017: Handle cardinality limits on the server side
• #2602552: Add "Remove" button on entity reference field widget
• #2656196: Initialize Entity Browser with existing selection
• Integrate with Entity embed
• #2605578: Create selection display plugin that will support multi-step flow
• #2766659: Create "entity browser" template

Bugs

• #2565577: Issue when using Entity Browser with Media Entity Image Module
• #2366315: Widget configuration is not saved correctly
• #2495071: Dropdown widgetselector isn't changing the widget
• #2278609: Create a view option is displayed when views UI is not enabled

Tests

• #2376639: Write functional tests for Views widget
• #2376643: Write functional tests for Upload widget

Documentation

• Basic concepts
• Configuration UI
• Integration with IEF
• Entity embed integration
• Document individual widgets
• Developer documentation