AttributeProperties#isFormatting property. Closes ckeditor/ckeditor5#1664. (d9f0a51)8.0.0 and npm to 5.7.1. See: ckeditor/ckeditor5#1507. (612ea3c)ElementDefinition usage to the changes in the engine. See ckeditor/ckeditor5#742. (5705b42)view.style, view.class and view.attribute properties are now called view.styles, view.classes and view.attributes.