+* Added context as second required argument to the `CKEditorError`'s constructor, changed `isCKEditorError()` method to `is()`. Introduced the `areConnectedThroughProperties()` utility Part of the [ckeditor/ckeditor5-watchdog#1](https://github.com/ckeditor/ckeditor5-watchdog/issues/1). ([bacc764](https://github.com/ckeditor/ckeditor5-utils/commit/bacc764))