htmlvalidate: This change only affects API users, the CLI tool continues to
work as before.
The default configuration loader has changed from FileSystemConfigLoader to
StaticConfigLoader, i.e. the directory traversal looking for
.htmlvalidate.json configuration files must now be explicitly enabled.
event:ConfigReadyEvent passes ResolvedConfig instance instead of ConfigData
meta:MetaElement.attribute has changed from string[] to
MetaAttribute[] and both requiredAttributes and deprecatedAttributes has
been merged into object. This only affects API usage, primarily custom rules
accessing attribute metadata.See MIGRATION.md for details.
The old format is deprecated but is internally converted as to not break user
configuration. For compatibility it will probably be around for quite a while
but users should try to migrate as soon as possible.
